NAEP Mathematics Grade 12 Sample Assessment Block West Virginia Board of Education 2011-2012 L. Wade Linger Jr., President Gayle C. Manchin, Vice President Robert W. Dunlevy, Secretary Michael I. Green, Member Priscilla M. Haden, Member Lloyd G. Jackson II, Member Lowell E. Johnson, Member Jenny N. Phillips, Member William M. White, Member Brian E. Noland, Ex Officio Chancellor West Virginia Higher Education Policy Commission James L. Skidmore, Ex Officio Chancellor West Virginia Council for Community and Technical College Education Jorea M. Marple, Ex Officio State Superintendent of Schools West Virginia Department of Education NAEP Mathematics - Grade 12 Table of Contents Directions................................................................................................................... 2 Sample Assessment Booklet Reference Sheet................................................................................................... 3 Assessment Questions......................................................................................... 5 NAEP Mathematics Framework Overview Information......................................... 19 Individual Item Analysis.......................................................................................... 21 1 | Page SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Mathematics Assessment. NAEP Mathematics - Grade 12 Directions for students: This section has 14 questions. Mark your answers in your booklet. You will have to fill in an oval or write your answer as directed. In those questions where you must write an answer, it is important that your answer be clear and complete and that you show all of your work since partial credit may be awarded. You will receive a reference sheet with this test booklet. The reference sheet contains mathematical formulas that may be useful for answering some of the questions in this section. 2 | Page SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Mathematics Assessment. NAEP Mathematics - Grade 12 1. 360 x 0.3 A. 10.8 B. 108 C. 120 D. 980 E. 1,080 5 | Page SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Mathematics Assessment. NAEP Mathematics - Grade 12 2. What is the value of h in the figure above? A. 4 3 B. 8 2 C. 8 3 D. 12 2 E. 12 3 6 | Page SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Mathematics Assessment. NAEP Mathematics - Grade 12 Questions 3-4 refers to the following scatterplot. A random sample of graduates from a particular college program reported their ages and incomes in response to a survey. Each point on the scatterplot above represents the age and income of a different graduate. 3. Of the following equations, which best fits the data above? A. B. C. D. E. 7 | Page SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Mathematics Assessment. NAEP Mathematics - Grade 12 4. Based on the data in the scatterplot, predictions can be made about the income of a 35 year old and the income of a 55 year old. For which age is the prediction more likely to be accurate? 35 year old 55 year old Justify your answer. 8 | Page SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Mathematics Assessment. NAEP Mathematics - Grade 12 5. Which of the following expressions is NOT equivalent to (a+b)(x+y)? A. (a+b)x+(a+b)y B. a(x+y)+ b(x+y) C. (b+a)(y+x) D. ax+by E. ax+bx+ay+by 9 | Page SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Mathematics Assessment. NAEP Mathematics - Grade 12 6. Which of the following containers has the greatest liquid capacity? (1 gallon = 4 quarts = 8 pints = 128 ounces) A. A 64-ounce orange juice container B. A 16-pint water jug C. A 5-quart punch bowl D. A 2-quart cola bottle E. A 1-gallon milk bottle 10 | Page SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Mathematics Assessment. NAEP Mathematics - Grade 12 7. The table above shows all the ordered pairs (x,y) that define a relation between the variables x and y . Is y a function of x ? Yes No Give a reason for your answer. 11 | Page SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Mathematics Assessment. NAEP Mathematics - Grade 12 8. The principal of a high school would like to determine why there has been a large decline during the year in the number of students who buy food in the school’s cafeteria. To do this, 25 students from the school will be surveyed. Which method would be the most appropriate for selecting the 25 students to participate in the survey? A. Randomly select 25 students from the senior class. B. Randomly select 25 students from those taking physics. C. Randomly select 25 students from a list of all students at the school. D. Randomly select 25 students from a list of students who eat in the cafeteria. E. Give the survey to the first 25 students to arrive at school in the morning. 12 | Page SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Mathematics Assessment. NAEP Mathematics - Grade 12 9. The graph above shows distance versus time for a race between runners A and B. The race is already in progress, and the graph shows only the portion of the race that occurred after 11 A.M. The table on the next page lists several characteristics of the graph. Interpret these characteristics in terms of what happened during this portion of the race. Include times and distances to support your interpretation. (A sample interpretation of the y-intercepts is given in the table.) 13 | Page SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Mathematics Assessment. NAEP Mathematics - Grade 12 14 | Page SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Mathematics Assessment. NAEP Mathematics - Grade 12 10.Carlene told Kyle that a rectangular room measured 16 feet by 12 feet, to the nearest foot. This means that the length could measure between 15.5 feet and 16.5 feet and the width could measure between 11.5 feet and 12.5 feet. Kyle performed the following calculations. Of the following intervals, which is the smallest interval that contains all possible values of the area of the room? A. Between 191.5 and 192.5 square feet B. Between 191 and 193 square feet C. Between 179 and 206 square feet D. Between 178 and 207 square feet E. Between 165 and 221 square feet 15 | Page SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Mathematics Assessment. NAEP Mathematics - Grade 12 11.Which of the following expressions is equal to ? A. B. C. D. E. 16 | Page SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Mathematics Assessment. NAEP Mathematics - Grade 12 12.In the figure above, the vertices of ABCD are A(-4, -4), B (-2, 2), C (8,4) and D (6, -2). 17 | Page Give a mathematical justification that ABCD is a parallelogram. SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Mathematics Assessment. NAEP Mathematics - Grade 12 Amplitude: 2 Period: 13.Which of the following trigonometric functions has the properties given above? A. B. C. D. E. 18 | Page SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Mathematics Assessment. NAEP Mathematics - Grade 12 14.What is the solution to the system of equations = -7 {3x-2y x+y=11 ? Answer: x = ____________________ y = ____________________ 19 | Page SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Mathematics Assessment. NAEP Mathematics - Grade 12 NAEP Mathematics Framework Overview Information The National Assessment of Educational Progress (NAEP) assesses students’ understanding of mathematical content. The framework for the mathematics assessment is anchored in five broad areas of mathematics. Broad Area of Mathematics Number Properties and Operations Measurement Geometry Data Analysis, Statistics, and Probability Algebra Includes but is not limited to Computation Understanding of number concepts Use of instruments Application of processes Concepts of area and volume Spatial reasoning Applying geometric properties Graphical display Statistics Representations relationships These divisions are not intended to separate mathematic into discrete elements. Rather, they are intended to provide a helpful classification scheme that describes the full spectrum of mathematical content assessed by NAEP. Classification of items into one primary content area is not always clear-cut, but it helps ensure that important mathematical concepts and skills are assessed in a balanced way. Item Distribution by Content Area Content Area Number Properties and Operations Measurement Geometry Data Analysis, Statistics, and Probability Algebra 20 | Page Grade 4 40% 20% 15% 10% 15% Grade 8 20% 15% 20% 15% 30% Grade 12 10% 30% 25% 35% SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Mathematics Assessment. NAEP Mathematics - Grade 12 Mathematical Complexity Items are the NAEP mathematics assessment are categories by mathematical complexity. Mathematical complexity is an indication of the demands on students’ thinking. The demand on thinking that an item expects—what it asks the student to recall, understand, reason about, and do—assume that students are familiar with the mathematics of the task. Mathematical complexity deals with what the students are asked to do in a task. It does not take into account how they might undertake it. NAEP has three levels of complexity—high, moderate, low—forming an ordered description of the demands an item may make on a student. Items at the low level of complexity, for example, may ask a student to recall a property. At the moderate level, an item may ask the student to make a connection between two properties; at the high level, an item may ask a student to analyze the assumptions made in a mathematical model. At each grade level, the percent of testing time at each complexity level is the same. One half the testing time is expected to be spent on moderate complexity level. One quarter of the testing time is expected to be spent on low complexity items and the remaining quarter on high complexity items. Item Type NAEP assessment in mathematics has three formats or item types: multiple-choice, short constructed response, and extended constructed response. • Multiple-choice items require students to read, reflect, or compute and then to select the alternative that best expresses the answer. Multiple-choice items for grade 4 have four choices, and at grades 8 and 12, there are five choices. • Short constructed-responses require students to give either a numerical result or the correct name or classification for a group of mathematical objects, draw an example of a given concept, or possibly write a brief explanation for a given result. • Extended Constructed-response items require students to consider a situation that requires more than a numerical response or a short verbal communication. The student may be asked, for example, to describe a situation, analyze a graph or table of values or an algebraic equation, or compute specific numerical values. The NAEP assessment is divided evenly between multiple-choice and both types of constructedresponse items. 50% of the testing time is expected to be spent of multiple-choice items and the other 50% on the constructed-response items. Note: No one student takes the entire mathematics assessment. Some blocks of assessment items may not contain all types of items, particularly the extended constructed response. 21 | Page SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Mathematics Assessment. NAEP Mathematics - Grade 12 Individual Item Analysis For each question in the sample block, the cognitive target is given. In addition, the percentage of students selecting each answer choice for multiple choice or scoring at each score point/ category are indicated for public school students in West Virginia and the nation. The correct multiple choice answer is indicated with an asterisk. In order for each question to be considered “omitted,” the student did not answer the question but answered a question or questions after it. 1. Number properties and operations A B* C D E Omitted West Virginia 13% 59% 10% 9% 8% 1% National Public 12% 64% 11% 5% 8% 1% 360 x 0.3 A. 0.8 B. 108 C. 120 D. 980 E. 1,080 22 | Page SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Mathematics Assessment. NAEP Mathematics - Grade 12 2. Geometry West Virginia 12% 29% 38% 12% 7% 2% A B C* D E Omitted National Public 12% 26% 43% 10% 6% 3% What is the value of h in the figure above? A. 4 3 B. 8 2 C. 8 3 D. 12 2 E. 12 3 3. Data Analysis and Probability A B C* D E Omitted West Virginia 6% 12% 42% 20% 19% 1% National Public 4% 11% 44% 17% 23% 2% Of the following equations, which best fits the data above? A. y= -1,000x+15,000 B. y=1,000x C. y=1,000x+15,000 D. y=10,000x E. y=10,000x+15,000 23 | Page SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Mathematics Assessment. NAEP Mathematics - Grade 12 4. Data Analysis and Probability West Virginia 28% 31% Rounds to Zero 40% 1% Rounds to Zero Incorrect 2* Incorrect 1* Partial Correct Omitted Off Task National Public 20% 34% Rounds to Zero 45% 1% Rounds to Zero Based on the data in the scatterplot, predictions can be made about the income of a 35 year old and the income of a 55 year old. For which age is the prediction more likely to be accurate? 35 year old 55 year old Justify your answer. Scoring Rubric Correct Correct oval filled in with acceptable justification Sample Correct Responses: Correct oval: 35 year old Justification: The prediction for the 35 year old is more likely to be accurate because the age 35 is contained within the interval of the data set. The age 55 is outside the interval of the data set, so any prediction for the income of a 55 year old would be an extrapolation. Partial Incorrect oval or neither oval filled in with justification that supports correct oval Incorrect 1 Correct oval filled in with incorrect or missing justification Incorrect 2 Other incorrect responses *Note: Separate “incorrect” categories do not indicate one incorrect answer is scored different from other incorrect answers. “Popular” incorrect answers are separated to better inform instructional decisions.n to educators. 24 | Page SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Mathematics Assessment. NAEP Mathematics - Grade 12 Correct - Student Response Exemplar 1 Based on the data in the scatterplot, predictions can be made about the income of a 35 year old and the income of a 55 year old. For which age is the prediction more likely to be accurate? 35 year old 55 year old Justify your answer. Scorer Comments: This response is correct, as it correctly states that there are data points for age 35 but no data points for age 55. Exemplar 2 Based on the data in the scatterplot, predictions can be made about the income of a 35 year old and the income of a 55 year old. For which age is the prediction more likely to be accurate? 35 year old 55 year old Justify your answer. Scorer Comments: This response is correct, as it correctly addressed the existence of data for 35 year olds. 25 | Page SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Mathematics Assessment. NAEP Mathematics - Grade 12 Partial - Student Response Exemplar 1 Based on the data in the scatterplot, predictions can be made about the income of a 35 year old and the income of a 55 year old. For which age is the prediction more likely to be accurate? 35 year old 55 year old Justify your answer. Scorer Comments: This response is partially correct, as an acceptable justification was given for the correct answer, but the incorrect oval was filled. Exemplar 2 Based on the data in the scatterplot, predictions can be made about the income of a 35 year old and the income of a 55 year old. For which age is the prediction more likely to be accurate? 35 year old 55 year old Justify your answer. Scorer Comments: This response is partially correct, since it presented an acceptable justification for the correct answer, but the incorrect oval was filled in. 26 | Page SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Mathematics Assessment. NAEP Mathematics - Grade 12 Incorrect 1 - Student Response Exemplar 1 Based on the data in the scatterplot, predictions can be made about the income of a 35 year old and the income of a 55 year old. For which age is the prediction more likely to be accurate? 35 year old 55 year old Justify your answer. Scorer Comments: This response is incorrect as the correct oval is filled in but there is no justification provided. Exemplar 2 Based on the data in the scatterplot, predictions can be made about the income of a 35 year old and the income of a 55 year old. For which age is the prediction more likely to be accurate? 35 year old 55 year old Justify your answer. Scorer Comments: This response is incorrect as the correct oval is filled in, but the justification provided was not acceptable. 27 | Page SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Mathematics Assessment. NAEP Mathematics - Grade 12 Incorrect 2 - Student Response Exemplar 1 Based on the data in the scatterplot, predictions can be made about the income of a 35 year old and the income of a 55 year old. For which age is the prediction more likely to be accurate? 35 year old 55 year old Justify your answer. Scorer Comments: This response is incorrect because the incorrect oval is filled in and the justification given is unacceptable. Exemplar 2 Based on the data in the scatterplot, predictions can be made about the income of a 35 year old and the income of a 55 year old. For which age is the prediction more likely to be accurate? 35 year old 55 year old Justify your answer. Scorer Comments: This response is incorrect because the incorrect oval is filled in and the justification given is unacceptable. 28 | Page SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Mathematics Assessment. NAEP Mathematics - Grade 12 5. Algebra A B C D* E Omitted West Virginia 12% 9% 8% 54% 17% 1% National Public 11% 8% 7% 61% 13% 1% Which of the following expressions is NOT equivalent to (a+b)(x+y)? A. (a+b)x+(a+b)y B. a(x+y)+ b(x+y) C. (b+a)(y+x) D. ax+by E. ax+bx+ay+by 6. Measurement A B* C D E Omitted West Virginia National Public 4% 56% 27% 1% 12% Rounds to Zero 3% 62% 21% 1% 12% 1% Which of the following containers has the greatest liquid capacity? (1 gallon = 4 quarts = 8 pints = 128 ounces) A. A 64-ounce orange juice container B. A 16-pint water jug C. A 5-quart punch bowl D. A 2-quart cola bottle E. A 1-gallon milk bottle 29 | Page SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Mathematics Assessment. NAEP Mathematics - Grade 12 7. Algebra West Virginia 46% 43% 1% Rounds to Zero 9% 1% Rounds to Zero Incorrect 2 Incorrect 1 Partial 2 Partial 1 Correct Omitted Off Task National Public 43% 38% 2% Rounds to Zero 14% 3% Rounds to Zero The table above shows all the ordered pairs (x,y) that define a relation between the variables x and y . Is y a function of x ? Yes No Give a reason for your answer. Scoring Rubric Correct Correct oval filled in with acceptable reason Sample Correct Responses: Correct oval: Yes Reason: For each x-value (domain) there is only one y-value (range) that is associated with it Partial 1* Neither oval filled in with acceptable reason Partial 2* Response of y = x 2 - 1 Incorrect 1* Correct oval filled in with incorrect or no reason Incorrect 2* Other incorrect responses *Note: Separate “incorrect” and “partial” categories do not indicate one incorrect or partial answer is scored different from other incorrect or partial answers. “Popular” partial and incorrect answers are separated to better inform instructional decisions.n to educators 30 | Page SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Mathematics Assessment. NAEP Mathematics - Grade 12 Correct - Student Response Exemplar 1 The table above shows all the ordered pairs (x,y) that define a relation between the variables x and y. Is y a function of x? Yes No Give a reason for your answer. Scorer Comments: This response is correct, as the correct oval is filled in and the response correctly states that for each x value there is a unique y value. In addition, a particular illustration of this is furnished, although it is not required for a response to be scored “Correct.” This response also correctly notes that for the given relation x is not a function of y, and provides a correct reason for this assertion. Exemplar 2 The table above shows all the ordered pairs (x,y) that define a relation between the variables x and y. Is y a function of x? Yes No Give a reason for your answer. Scorer Comments: This response is correct, as the correct oval is filled in and the response gives a correct, but minimal reason that the relation represents a function. 31 | Page SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Mathematics Assessment. NAEP Mathematics - Grade 12 Partial 1 - Student Response The table above shows all the ordered pairs (x,y) that define a relation between the variables x and y. Is y a function of x? Give a reason for your answer. Partial 2 - Student Response Exemplar 1 The table above shows all the ordered pairs (x, y) that define a relation between the variables x and y . Is y a function of x ? Yes No Give a reason for your answer. Scorer Comments: This response is partially correct, as the oval was correctly filled in, but the explanation is not accurate. It states that the table is the function y = x2 - 1. While the ordered pairs given in the table do satisfy the equation y =x2- 1, this is not the only such function, since, for example, also satisfies the relationship in the table. The response provides no reason to support that this is a functional relationship. 32 | Page SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Mathematics Assessment. NAEP Mathematics - Grade 12 Exemplar 2 The table above shows all the ordered pairs (x, y) that define a relation between the variables x and y. Is y a function of x? Yes No Give a reason for your answer. Scorer Comments: This response is partially correct. It states that the table is a particular quadratic function. While the ordered pairs given in the table do satisfy the given quadratic function, this is not the only such function, since plotting the given ordered pairs and joining them in various ways produce infinitely many possible functions. The response provides no reason to support that this is a functional relationship. Incorrect 1 - Student Response Exemplar 1 The table above shows all the ordered pairs (x, y) that define a relation between the variables x and y. Is y a function of x? Yes No Give a reason for your answer. Scorer Comments: This response is incorrect as the correct oval is filled in but the explanation is unacceptable. 33 | Page SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Mathematics Assessment. NAEP Mathematics - Grade 12 Exemplar 2 The table above shows all the ordered pairs (x, y) that define a relation between the variables x and y. Is y a function of x? Yes No Give a reason for your answer. Scorer Comments: This response is incorrect as the correct oval is filled in but there is no reason given. Incorrect 2 - Student Response Exemplar 1 The table above shows all the ordered pairs (x, y) that define a relation between the variables x and y. Is y a function of x? Yes No Give a reason for your answer. Scorer Comments: This response is incorrect as the incorrect oval is filled in and the reason is unacceptable. Exemplar 2 The table above shows all the ordered pairs (x, y) that define a relation between the variables x and y. Is y a function of x? Yes No Give a reason for your answer. Scorer Comments: This response is incorrect as the incorrect oval was filled in and no reason is given. 34 | Page SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Mathematics Assessment. NAEP Mathematics - Grade 12 8. Data Analysis and Probability A B C* D E Omitted West Virginia National Public 7% 1% 69% 20% 3% Rounds to Zero 6% 2% 59% 30% 3% 1% The principal of a high school would like to determine why there has been a large decline during the year in the number of students who buy food in the school’s cafeteria. To do this, 25 students from the school will be surveyed. Which method would be the most appropriate for selecting the 25 students to participate in the survey? A. Randomly select 25 students from the senior class. B. Randomly select 25 students from those taking physics. C. Randomly select 25 students from a list of all students at the school. D. Randomly select 25 students from a list of students who eat in the cafeteria. E. Give the survey to the first 25 students to arrive at school in the morning. 9. Algebra Composite West Virginia 34% 16% 21% 11% Rounds to Zero 15% 2% Incorrect Minimal Partial Satisfactory Complete Omitted Off Task National Public 35% 13% 24% 13% 1% 13% 2% Interpret characteristics of graph in context A Unsatisfactory/Incorrect Partial Complete Omitted Off task 35 | Page West Virginia 41% 25% 1% 29% 5% National Public 40% 27% 3% 26% 5% SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Mathematics Assessment. NAEP Mathematics - Grade 12 Interpret characteristics of graph in context B Unsatisfactory/Incorrect Partial Complete Omitted Off task West Virginia 35% 31% 15% 17% 3% National Public 32% 33% 17% 16% 2% Interpret characteristics of graph in context C Unsatisfactory/Incorrect Partial Complete Omitted Off task West Virginia 29% 13% 34% 20% 3% National Public 27% 15% 35% 20% 3% The graph above shows distance versus time for a race between runners A and B. The race is already in progress, and the graph shows only the portion of the race that occurred after 11 A.M. The table on the next page lists several characteristics of the graph. Interpret these characteristics in terms of what happened during this portion of the race. Include times and distances to support your interpretation. (A sample interpretation of the y-intercepts is given in the table.) 36 | Page SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Mathematics Assessment. NAEP Mathematics - Grade 12 Scoring Rubric There are three components in this response. Note: Sample responses for partial credit. Composite Score: Student response received one of five possible composite scores (Extended, Satisfactory, Partial, Minimal, or Incorrect) based on the student’s combined performance on Parts A, B, and C of the item. For example, a student response of Correct for Part A, Correct for Part B, and Incorrect for Part C received a composite score of Satisfactory. 37 | Page SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Mathematics Assessment. NAEP Mathematics - Grade 12 Parts A, B and C: Complete - Student Response Exemplar 1 The graph above shows distance versus time for a race between runners A and B. The race is already in progress, and the graph shows only the portion of the race that occurred after 11 A.M. The table on the next page lists several characteristics of the graph. Interpret these characteristics in terms of what happened during this portion of the race. Include times and distances to support your interpretation. (A sample interpretation of the y-intercepts is given in the table.) Scorer Comments: The response for “Slopes” is correct, since it correctly interprets the slopes as the runners’ speeds and gives the correct values for their speeds. This response for “Point of intersection” is correct because it correctly interprets the point of intersection of the lines as the time when both runners are the same distance from the finish line and provides the correct values for the time and distance. This response for “x-intercepts” is correct, since it correctly interprets the x-intercept as the time when the runners finish the race and provides the correct finishing time for both runners. 38 | Page SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Mathematics Assessment. NAEP Mathematics - Grade 12 Exemplar 2 The graph above shows distance versus time for a race between runners A and B. The race is already in progress, and the graph shows only the portion of the race that occurred after 11 A.M. The table on the next page lists several characteristics of the graph. Interpret these characteristics in terms of what happened during this portion of the race. Include times and distances to support your interpretation. (A sample interpretation of the y-intercepts is given in the table.) Scorer Comments: The response for “Slopes” is correct, since it correctly interprets the slopes as the runners’ speeds and correctly quantifies their speeds in terms of distance per time. This response for “Point of intersection” is correct because it correctly interprets the point of intersection of the lines as the time when both runners are at the same distance from the finish line and provides the correct values for the time and distance. This response for “x-intercepts” is correct, since it correctly interprets the x-intercept as the time when the finish line is reached, that is, when the distance to the finish line is 0, and provides a correct time for both runners. 39 | Page SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Mathematics Assessment. NAEP Mathematics - Grade 12 Parts A and C: Complete, Part B: Partial - Student Response The graph above shows distance versus time for a race between runners A and B. The race is already in progress, and the graph shows only the portion of the race that occurred after 11 A.M. The table on the next page lists several characteristics of the graph. Interpret these characteristics in terms of what happened during this portion of the race. Include times and distances to support your interpretation. (A sample interpretation of the y-intercepts is given in the table.) Scorer Comments: The response for “Slopes” is correct, since it correctly interprets the slopes as the runners’ speeds and gives the correct values for their speeds. This response for “Point of intersection” is partially correct because it correctly interprets the point of intersection of the lines but fails to provide numerical values. This response for “x-intercepts” is correct, since it correctly interprets the x-intercept as the time when the finish line is reached and provides the correct finishing time for both runners. 40 | Page SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Mathematics Assessment. NAEP Mathematics - Grade 12 Parts A, B and C: Partial - Student Response Exemplar 1 The graph above shows distance versus time for a race between runners A and B. The race is already in progress, and the graph shows only the portion of the race that occurred after 11 A.M. The table on the next page lists several characteristics of the graph. Interpret these characteristics in terms of what happened during this portion of the race. Include times and distances to support your interpretation. (A sample interpretation of the y-intercepts is given in the table.) Scorer Comments: The response for “Slopes” is partially correct, as it correctly identifies the slopes as the runners’ speeds but it does not provide numerical values. This response for “Point of intersection” is partially correct, as it correctly interprets the point of intersection of the graphs, but it does not provide numerical values. This response for “x-intercepts” is partially correct, as it correctly interprets the meaning of the x-intercepts but it does not give numerical values. 41 | Page SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Mathematics Assessment. NAEP Mathematics - Grade 12 Exemplar 2 The graph above shows distance versus time for a race between runners A and B. The race is already in progress, and the graph shows only the portion of the race that occurred after 11 A.M. The table on the next page lists several characteristics of the graph. Interpret these characteristics in terms of what happened during this portion of the race. Include times and distances to support your interpretation. (A sample interpretation of the y-intercepts is given in the table.) Scorer Comments: The response for “Slopes” is partially correct, as it correctly identifies the slopes as the runners’ speeds and, although it compares the speeds of the two runners, it does not provide numerical values. This response for “Point of intersection” is partially correct, as it correctly interprets the point of intersection of the graphs. The response also provides the distance of the runners from the finish line, but it does not provide the time. This response for “x-intercepts” is partially correct as it correctly interprets the meaning of the x-intercepts but it does not give numerical values. 42 | Page SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Mathematics Assessment. NAEP Mathematics - Grade 12 Parts A and C: Partial, Part B: Incorrect - Student Response The graph above shows distance versus time for a race between runners A and B. The race is already in progress, and the graph shows only the portion of the race that occurred after 11 A.M. The table on the next page lists several characteristics of the graph. Interpret these characteristics in terms of what happened during this portion of the race. Include times and distances to support your interpretation. (A sample interpretation of the y-intercepts is given in the table.) Scorer Comments: The response for “Slopes” is partially correct, since it correctly interprets the slopes as the runners’ speeds but it does not provide numerical values. This response for “Point of intersection” is incorrect because it gives an incorrect interpretation of the point of intersection of the lines and does not provide numerical values. This response for “x-intercepts” is partially correct, since it correctly interprets the x-intercept as the time when the finish line is reached, but it does not provide the finishing time for the runners. 43 | Page SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Mathematics Assessment. NAEP Mathematics - Grade 12 10.Measurement A B C D* E Omitted West Virginia National Public 10% 13% 23% 22% 31% 1% 10% 14% 21% 26% 27% 2% Carlene told Kyle that a rectangular room measured 16 feet by 12 feet, to the nearest foot. This means that the length could measure between 15.5 feet and 16.5 feet and the width could measure between 11.5 feet and 12.5 feet. Kyle performed the following calculations. Of the following intervals, which is the smallest interval that contains all possible values of the area of the room? A. Between 191.5 and 192.5 square feet B. Between 191 and 193 square feet C. Between 179 and 206 square feet D. Between 178 and 207 square feet E. Between 165 and 221 square feet 44 | Page SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Mathematics Assessment. NAEP Mathematics - Grade 12 11.Algebra A B C D* E Omitted West Virginia 36% 9% 29% 18% 7% 1% Which of the following expressions is equal t to National Public 31% 9% 26% 26% 6% 2% ? A. B. C. D. E. 45 | Page SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Mathematics Assessment. NAEP Mathematics - Grade 12 12.Geometry Unsatisfactory/Incorrect Partial Complete Omitted Off task West Virginia 65% 3% 3% 26% 3% National Public 63% 5% 8% 21% 3% In the figure above, the vertices of ABCD are A(-4, -4), B (-2, 2), C (8,4) and D (6, -2). Give a mathematical justification that ABCD is a parallelogram. 46 | Page SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Mathematics Assessment. NAEP Mathematics - Grade 12 Scoring Rubric Correct Complete justification Sample Correct Responses: 47 | Page SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Mathematics Assessment. NAEP Mathematics - Grade 12 Justification: Alternate Justifications: Four other approaches to show that a quadrilateral is a parallelogram follow. NOTES: • To be acceptable, a justification must include a complete statement or numerical demonstration of the criteria. • A partially correct justification shows a complete and correct process but has an arithmetic error OR shows only that one set of lines are parallel or congruent, or that one set of angles are congruent, etc. 48 | Page SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Mathematics Assessment. NAEP Mathematics - Grade 12 Partial Partially correct justification Incorrect Incorrect response Correct - Student Response Exemplar 1 In the figure above, the vertices of ABCD are A (-4, -4), B (-2, 2), C (8, 4), and D (6, -2). Give a mathematical justification that ABCD is a parallelogram. Scorer Comments: This response is correct, as it indicates that the slopes of both pairs of opposite sides are equal by giving the value of the slopes. 49 | Page SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Mathematics Assessment. NAEP Mathematics - Grade 12 Exemplar 2 In the figure above, the vertices of ABCD are A (-4, -4), B (-2, 2), C (8, 4), and D (6, -2). Give a mathematical justification that ABCD is a parallelogram. Scorer Comments: This response is correct, as it shows that the lengths of both pairs of opposite sides are equal by computing the lengths of the sides. 50 | Page SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Mathematics Assessment. NAEP Mathematics - Grade 12 Partial - Student Response Exemplar 1 In the figure above, the vertices of ABCD are A (-4, -4), B (-2, 2), C (8, 4), and D (6, -2). Give a mathematical justification that ABCD is a parallelogram. Scorer Comments: This response is partially correct. The response correctly stated that the equality of the lengths of both pairs of opposite sides would prove the figure a parallelogram. The stated equality, however, is not supported by numerical calculations. The response also correctly stated that equality of the slopes of both pairs of opposite sides would prove that the figure is a parallelogram. However, one pair of slope computations was incorrect (the slope of segments AB and CD is equal to 3, not -3). Exemplar 2 In the figure above, the vertices of ABCD are A (-4, -4), B (-2, 2), C (8, 4), and D (6, -2). Give a mathematical justification that ABCD is a parallelogram. Scorer Comments: This response is partially correct, as the response establishes the equality of the slopes for one pair of opposite sides, but fails to compute the slopes of the second pair of opposite sides of the figure. 51 | Page SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Mathematics Assessment. NAEP Mathematics - Grade 12 13.Algebra A B C D E* Omitted West Virginia 21% 15% 28% 24% 11% 2% National Public 20% 13% 21% 29% 14% 4% Amplitude: 2 Period: 2� 3 Which of the following trigonometric functions has the properties given above? A. B. C. D. E. 14.Algebra Incorrect Partial Correct Omitted Off task West Virginia 64% 6% 27% Rounds to Zero 4% What is the solution to the system of equations National Public 54% 6% 37% Rounds to Zero 3% = -7 {3x-2y x+y=11 ? Answer: x = ____________________ y = ____________________ 52 | Page SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Mathematics Assessment. NAEP Mathematics - Grade 12 Scoring Rubric Correct Both values correct Sample Correct Responses: Answer: x=3, y=8 Solution (not required in response): Partial One correct value only Incorrect Incorrect response 53 | Page SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Mathematics Assessment. NAEP Mathematics - Grade 12 Correct - Student Response Exemplar 1 What is the solution to the system of equations = -7 {3x-2y x+y=11 ? Scorer Comments: This response is correct, with answers of x = 3 and y = 8. 54 | Page SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Mathematics Assessment. NAEP Mathematics - Grade 12 Exemplar 2 What is the solution to the system of equations = -7 {3x-2y x+y=11 ? Scorer Comments: This response is correct, with answers of x = 3 and y = 8. 55 | Page SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Mathematics Assessment. NAEP Mathematics - Grade 12 Partial - Student Response Exemplar 1 What is the solution to the system of equations = -7 {3x-2y x+y=11 ? Scorer Comments: This response is partially correct, with an incorrect answer of x = -29/5 and a correct answer of y = 8. 56 | Page SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Mathematics Assessment. NAEP Mathematics - Grade 12 Exemplar 2 What is the solution to the system of equations = -7 {3x-2y x+y=11 ? Scorer Comments: This response is partially correct, with a correct answer of x = 3 and an incorrect answer of y = 18/5. 57 | Page SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Mathematics Assessment. NAEP Mathematics - Grade 12 58 | Page SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Mathematics Assessment. NAEP Mathematics - Grade 12 59 | Page SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Mathematics Assessment. NAEP Mathematics - Grade 12 60 | Page SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Mathematics Assessment. Jorea M. Marple, Ed.D. State Superintendent of Schools