Dec 23, 2014 Daniel Garbin Mathematics and Computer Science MA 119 College Algebra Fall 2014 Assessment Report and Analysis Introduction This account contains the assessment report and analysis for the MA 119 College Algebra course. The assessment considers 39 sections out of 95 currently offered, representing about 41% of the course sections being taught by the department during the Fall 2014 semester. There are 796 students that have participated in this assessment. The assessment is done based on the students’ performance on the final exam. Given that the final exam is uniform and cumulative, it is inferred that the assessment should be representative of the population of students taking College Algebra at Queensborough Community College CUNY and that the course may be addressed based on the findings of the assessment. Acknowledgments The principal investigator would like to acknowledge the great help received from the members of the MA-119 Curriculum Committee, in particular Zeynep Akcay, Lucien Makalanda, Andrew Bulawa, Sylvia Svitak, Andrew Russell, Venessa Singhroy, and Robert Holt. Additionally, the PI would like to express the help of the MA-119 final exam committee Changiz Alizadeh, Kwai Chiu, Danielle Cifone, Robert Donley, and Lixu Li, and the secretaries of the Mathematics and Computer Science department, Carol Schilling and Arlene Rodriguez, for help with the logistics of the assessment. Lastly, we express our gratitude to the various faculty members that have participated in the assessment and gone the extra mile in gathering data. Course description A basic presentation of the fundamental concepts of college algebra, systems of linear equations, inequalities, linear, quadratic, exponential and logarithmic functions. During the recitation hour, students review properties of signed numbers, graphing of linear equations, basic geometric concepts, solution of linear equations, factoring algebraic expressions and its applications to rational expressions. A graphing calculator will be required. The course is required/recommended towards the following: A.A. degree in Liberal Arts and Sciences, A.S. degree in Visual and Performing Arts, A.S. Degree Programs in Liberal Arts and Sciences (Science and Mathematics), Engineering Science, Health Sciences, Environmental Health, Criminal Justice. Student learning outcomes and general education objectives Following the departmental course syllabus, the general education objectives listed therein are as follows • use analytical reasoning skills to identify issues or problems and evaluate evidence in order to make informed decisions; • reason quantitatively and mathematically as required in their fields of interest and in everyday life; • integrate knowledge and skills in their program of study; 1 • use information management and technology skills effectively for academic research and lifelong learning. As far as the student learning outcomes, the class promotes the following goals: • understand the important concepts and theories of algebraic, geometric, exponential, and logarithmic functions; • apply such concepts to solve problems in mathematics, engineering and other disciplines. Description of assignment While there may be several ways as far as student assignments, it is the final exam that can be viewed as a unifier among them and consequently one of the better ways for assessing learning. The final exam is cumulative, consisting of almost all topics covered by the course. The final exam is also uniform and written up by several faculty members of the department. Additionally, the department policy is that “the final exam must count at least 30% of the grade and the student must score a minimum of 55 on the uniform final exam to pass the course.” In order to measure students’ performance, we examine the students’ solutions to 4 carefully chosen questions on the final exam. The questions chosen are broad enough so that on the one hand, they encompass several concepts covered in the course, while on the other hand, they help us understand and measure the degree to which students have fulfilled the above learning outcomes and general education objectives. Below you can find a description and assessment rubric for the last 4 question on the final exam numbered 16 through 19. 16. Find an equation of the line that is perpendicular to the line . . . and passes through the point . . . . Learning outcomes: Understand the concept of linear functions together with geometric concepts such as lines and perpendicularity. Such concepts are ubiquitous. Rubric: Check boxes 16a through 16c respectively if the student has: a) found the slope of the given line b) found the slope of the perpendicular line, based on part a) answer c) found correct equation (in any form) of the perpendicular line, based on part b). 17. Determine the amount of money you will !nthave after . . . years if you deposit . . . at . . . annual interest r compounded quarterly, using A = P 1 + . Round to the nearest cent (in dollars and cents.) n Learning outcomes: Understand the concept of exponential functions; Apply such concept to solve a problem in real life (finance). The question also requires that students understand various concepts from finances and proper use of technology such as calculator. Rubric: Check boxes 17a through 17c respectively if the student has: a) plugged in the correct value for the interest rate 2 b) used the correct value of the number of compounding periods per year c) computed the amount correctly. 18. A rectangular garden whose length is . . . feet longer than its width has an area of . . . square feet. Find the dimensions of the garden, rounded to the nearest tenth of a foot. Learning outcomes: Understand the concept of quadratic functions and equations together with geometric concepts such as lines and perpendicularity. Apply such concepts to solve a problem in a real life situation (interior design/carpentry.) Rubric: Check boxes 18a through 18d respectively if the student has: a) written correct equation for the area b) derived the quadratic equation c) solved the equation correctly d) found the dimensions. 19. For the function y = x2 + bx + c , a) Determine the coordinates of the x-intercepts (if any). b) Determine the coordinates of the y-intercept. c) Determine the equation of the axis of symmetry. d) Determine the coordinates of the vertex. e) Graph the function, and label and indicate an appropriate scale on the axes. Learning outcomes: Understand the concept of quadratic functions together with geometric concepts such as turning points, symmetry, and graphing parabolas. Apply such concept to solve questions from say physics (if coefficients are changed, the function describes the motion or height of a vertically thrown object.) Rubric: Check boxes 19a through 19e respectively if the student has: a) found the x-intercepts. b) found the y-intercept c) found the axis of symmetry d) found the vertex e) graphed the function. 3 Results The following tables summarize the number and percentage of correct answers based on the aforementioned rubric items. For the complete data table, please see the appendix. We will recall here that 796 students have participated in this assessment. Rubric item Correct answer count Correct answer percentage Rubric item Correct answer count Correct answer percentage 18a 457 57% 16a 516 65% 18b 361 45% 16b 312 39% 18c 205 26% 16c 259 33% 18d 174 22% 17a 531 67% 19a 552 69% 17b 492 62% 19b 556 70% 17c 367 46% 19c 428 54% 19d 426 54% 19e 461 58% Data Analysis The results in this assessment demonstrate the students’ usual pluses and minuses. Students continue to have difficulties with fractions and word problems. Students are generally more comfortable with questions that are broken down over several parts; difficulties occur when students have to connect several concepts in order to solve a problem. The department continues to make every effort in providing rigorous instruction based on conceptual understanding rather than procedural problem solving. The MA-119 committee will continue to evaluate the results in even greater details and make recommendation to the department. The student performance in question 16 is weak as only about a third are able to answer the question correctly. One would expect a better performance since this question deals with perpendicular lines and such are ubiquitous. The issue here seems to be poor arithmetic skills as solving the question correctly requires knowledge of fractions. Question number 17 deals with computing the amount of money in an account based on initial deposit, annual rate, and compounding periods per year. About two thirds of students are able to convert the annual rate from percentage to decimal and a little less than this understand the concept of number of compounds per year. Nonetheless, short of half of students are able to compute the amount, using the calculator. While students tend to use a calculator more than needed, when it comes to slightly more sophisticated calculator computations students have greater difficulties. The weakest performance is in 18, a question that deals with a word problem involving several concepts such as area of a rectangle, relation between quantities, and quadratic equations. Here only a quarter provide a complete solution. This may be indicative of lack of vue d’ensemble. It is not speculative to suggest that if this question were scaffolded over several parts (much like in question 19), the students performance would improve. In question 19 the students have to combine algebra, arithmetic, and geometry concepts to ultimately graph a quadratic equation (a parabola). Here the situation improves as little over two thirds handle the algebra and arithmetic portion, little over half find the vertex of the parabola, and about three fifths provide the graph. Albeit that the vertex is needed to graph the parabola, more students graph the parabola without necessarily solving correctly for the vertex. This indicates that students use the calculator to graph the function. 4 Math 119 -- Fall 2014 -- Assessment Data Sheet Total number of students in a section Section Section count: Student count: 39 796 Found Found Found Plugged Found Found Wrote Derived Solved Found Found Found Found Found Graphed slope slope eqn correct correct correct correct the eqn. both x-ints y-int axis coords. the of given perp of perp rate number amount eqn. quad. correct. dimens. of of func. line line line comp. for area eqn. symm. vertex based based periods on 16a on 16b per year 18a 18b 19c 19d 16a 16b 16c 17a 17b 17c 18c 18d 19a 19b 19e 1 23 16 4 2 4 13 3 21 11 4 3 20 18 17 15 17 2 24 17 8 8 7 8 3 9 6 4 6 15 17 8 11 15 3 19 17 5 7 13 8 8 11 8 4 5 13 13 10 8 12 4 23 16 11 8 12 10 9 17 15 4 4 13 9 7 14 12 5 18 7 10 10 13 9 8 11 8 7 9 15 17 10 12 10 6 21 5 2 0 14 13 5 7 6 2 0 10 9 7 4 12 7 21 13 8 13 13 16 9 9 9 8 7 14 12 9 10 7 8 25 20 11 6 20 20 15 14 17 9 6 16 20 14 19 18 9 24 17 6 6 12 14 9 6 6 2 2 20 17 13 11 16 10 13 11 4 3 13 9 8 8 8 4 2 9 10 7 7 7 11 21 15 13 12 18 18 13 19 17 2 5 16 15 14 8 9 12 22 15 9 10 21 20 21 21 21 17 14 20 19 20 14 19 13 22 18 11 9 19 18 16 19 15 10 7 16 17 12 13 13 14 22 13 8 5 11 8 3 6 3 2 0 12 14 4 10 11 15 17 12 8 3 12 11 9 9 5 4 2 14 10 12 9 4 16 25 16 6 5 18 19 14 15 9 10 7 21 15 16 15 13 17 19 7 5 3 10 10 7 10 5 2 1 8 14 6 8 8 18 14 8 7 9 6 9 3 5 3 0 0 7 10 3 6 11 19 21 10 4 8 11 11 6 7 4 2 2 16 11 7 8 14 20 20 18 12 4 15 9 9 7 6 1 2 8 11 9 12 14 21 26 16 10 7 15 9 6 17 13 7 6 18 17 9 13 15 22 19 12 10 10 13 13 13 9 8 8 6 15 15 13 11 11 23 23 11 10 9 10 10 9 14 11 9 8 17 11 12 11 11 24 24 13 4 1 17 19 10 7 5 2 4 21 19 14 18 16 25 16 11 5 3 12 10 9 7 4 0 4 9 11 10 11 11 26 19 16 13 13 16 16 16 11 10 9 9 17 18 16 12 12 27 10 4 3 3 4 6 4 3 2 1 0 6 6 4 6 5 28 11 4 4 3 3 6 4 2 2 2 1 4 4 5 4 4 29 19 15 12 9 17 16 11 17 14 6 6 16 16 14 13 12 30 21 16 10 13 19 15 16 15 13 7 5 16 16 13 12 14 31 23 8 3 1 15 15 10 15 13 4 4 8 15 10 10 12 32 22 20 6 3 15 5 4 15 9 4 3 22 17 13 14 16 33 22 17 12 7 18 16 12 17 14 10 7 16 18 16 10 8 34 23 14 9 7 10 4 1 12 6 2 0 8 11 8 5 10 35 17 10 9 8 15 15 10 14 14 7 7 13 13 8 11 14 36 22 17 10 4 21 20 18 16 15 11 8 19 20 16 15 15 37 25 15 11 5 21 24 15 15 10 6 4 21 22 16 12 13 38 21 15 11 17 20 15 17 12 10 7 4 16 18 16 16 15 39 19 11 8 5 8 5 4 8 6 5 4 7 11 10 8 5 796 516 312 259 531 492 367 457 361 205 174 552 556 428 426 461 65% 39% 33% 67% 62% 46% 57% 45% 26% 22% 69% 70% 54% 54% 58% Totals Percentage Pass