Sep 12, 2015 MA 119 Curriculum Committee Mathematics and Computer Science MA 119 College Algebra Spring 2015 Assessment Report and Analysis Introduction This account contains the assessment report and analysis for the MA 119 College Algebra course. The assessment considers 54 sections which is about half of the course sections being taught by the department during the Spring 2015 semester. There are 1, 139 students participated in this assessment. This report augments to the previously conducted assessment during the Fall semester of 2014. 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 members of the MA-119 Curriculum Committee – Zeynep Akcay, Lucien Makalanda, Andrew Bulawa, Sylvia Svitak, Andrew Russell, Venessa Singhroy, Daniel Garbin and Robert Holt – would like to express much appreciation to 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 The course consists of 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 first 4 question on the final exam numbered 1 through 4. 1. Solve for x: log3 (2x − 5) = 2 . Learning outcomes: Apply the relationship between logarithmic and exponential functions to solve logarithmic equations; recognize that the solution requires solving a linear equation; determine, and solve the required linear equations. Check boxes 1a through 1c respectively if the student has: a) written the equation either as 2x−5 = 32 ; alternate equations are log3 (2x−5) = log3 (32 ) or 3log3 (2x−5) = 32 b) arrived at the linear equation 2x − 5 = 9 c) solved correctly the equation in part b) 2. Write the domain of the function using interval notation √ f (x) = 28 − 4x . Learning outcomes: Recognize that a domain of a function defines what values for the input are permissible; recognize and apply inequalities to determine a domain; solve the required inequalities correctly; write the domain in interval notation. Check boxes 2a through 2d respectively if the student has: 2 a) identified that the radicand must be non-negative, i.e. 28 − 4x ≥ 0 b) arrived at one of the two inequalities 28 ≥ 4x or −4x ≥ −28 c) solved correctly, i.e. x ≤ 7 d) provided the solution using interval notation. 3. Simplify completely 1 2 − 2 x x . 4 1− 2 x Learning outcomes: Recognize rational expressions as ratios of algebraic expressions, which may be simplified to ratios of polynomials; simplify rational expressions by appropriate techniques. Check boxes 3a through 3d respectively if the student has: a) found the least common multiple of all the fractions, i.e. LCM = x2 ; alternatively, combined the x−2 x2 − 4 fractions at the top and bottom as and resp. x2 x2 b) scaled up (amplified) the fraction by LCM; alternatively, arrived at c) arrived at x−2 x2 · x2 x2 − 4 x−2 x2 − 4 d) simplified to 1 . x+2 4. Solve for x and check √ 5x − 9 + 1 = x . Learning outcomes: Recognize radical expressions in equations; apply the techniques required to solve equations that involve radical expressions. Check boxes 4a through 4e respectively if the student has: a) arrived at 5x − 9 = (x − 1)2 b) obtained correct binomial expansion (x − 1)2 = x2 − 2x + 1 c) arrived at the quadratic equation x2 − 7x + 10 = 0 d) obtained x = 2, 5 as solutions e) checked the solutions and identified that both are correct. 3 Data Analysis Overall, students performed better on the first two questions. This is most likely due to the fact that questions 3 and 4 require better grasp on the algebraic machine and involve more steps. Students continue to have difficulties with fractions and word problems. Students are generally more comfortable with questions that are broken down into 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 detail and make recommendations to the department. Question 1 was answered correctly by 3 out of 5 students. Once students know the definition of the logarithm, students are able to solve the resulting linear equation. About half answered question 2 correctly. However, the final answer had to be expressed in two different ways (inequality and interval notation.) When orientation or direction is understood, then the two forms of answering are synonymous. Only 1/3 of students provided both forms. Question 3 requires algebraic manipulation (simplification of fractions where the parts themselves are fractions.) About 2/3 of students commenced on the right path. However, it is disappointing to see that only 1/4 of the students were able to solve it all the way through. Question 4 is also algebraic, involving a radical equation. Here again, 2/3 started correctly, 1/3 found the solution, yet only 1/4 checked the validity of the solutions. Worth noting is the fact that all these assessed questions, while different in level of difficulty and complexity, carry the same grade weight. The same applies to the uniform exam in whole. It may be somewhat debatable, that question 4 ought to be worth twice as much as question 1. If questions were weighted at their true values, it would align the grades on the final more with the data from the assessment. We hypothesizes the following: A possible reduction in course topics and strong emphasis of in-depth coverage of the topics, together with applications of mathematics to the quotidian life, will have an impact in the way students experience mathematics. This may contribute towards our goal of promoting understanding in mathematics as well as increasing the passing rate, and motivating professors towards introducing students to the actual world of mathematics. Metaphysical issues such as what mathematics is, why mathematics should be studied, and that mathematics should not be a dry subject, but more an art on the one hand and philosophy and pattern recognition (or lack of) on the other. 4 Math 119 -- Spring 2015 -- Assessment Data Sheet Total number of students in a section Section Section count: Student count: 54 1139 Obtained Obtained Solved Radicand Obtained Obtained Wrote equation equation part b 28-4x either x <= 7 correct 2 2x-5 = 3 2x-5 = 9 correctly >= 0 28>=4x interval or an or equiv. equiv. equation Found LCM x2 or combined top and bottom fractions Scaled Arrived SimplifiedObtained fractions at fractionto 5x-9 = 2 by LCM x-2 1 (x-1) or x2-4 x-2 correct alt. Expanded Arrived the at binomial correct correctly quad. equation Found x=2,5 as solutions Checked solutions and stated both are correct 1a 3a 3b 4b 4d 4e 1b 1c 2a 2b 2c 2d 3c 3d 4a 4c 1 22 12 11 9 14 14 6 4 12 9 6 4 17 8 4 2 1 2 17 11 11 11 14 14 13 10 10 8 8 7 11 10 7 5 4 3 16 8 11 11 11 11 10 6 9 9 6 3 9 9 9 5 4 4 24 14 14 14 9 8 7 3 17 13 12 9 13 12 11 11 3 5 18 3 6 6 7 7 4 3 13 13 5 4 6 5 4 4 4 6 22 17 17 17 16 17 14 7 20 17 15 4 12 9 9 6 6 7 26 14 11 11 19 13 13 10 19 16 12 8 17 15 12 10 12 8 22 13 13 15 4 4 4 4 8 7 7 4 10 8 6 6 7 9 27 7 4 2 13 7 7 4 13 4 0 0 12 10 8 7 7 10 21 15 14 13 12 11 8 8 17 15 15 15 18 14 13 11 5 11 11 4 4 4 5 7 5 4 6 5 4 3 5 5 5 5 4 12 27 13 13 12 11 10 8 7 20 10 8 3 16 12 12 11 8 13 20 10 10 10 15 16 16 13 9 6 6 6 13 11 11 10 7 14 26 13 11 11 7 7 4 2 20 14 7 6 13 8 8 8 7 15 25 7 7 6 5 5 5 4 19 7 7 4 6 4 3 2 1 16 18 11 12 12 11 11 8 9 11 9 9 9 13 11 7 6 5 17 22 9 7 7 13 12 9 7 18 6 6 3 5 3 2 2 2 18 20 15 14 16 10 11 10 6 15 12 10 8 8 8 6 10 2 19 27 23 22 22 24 23 17 12 20 18 17 15 19 17 17 16 15 20 24 15 14 13 16 16 11 11 13 9 9 7 12 10 10 10 9 21 17 9 9 9 9 8 13 3 10 9 9 5 13 11 10 10 8 22 21 13 13 13 11 16 15 6 18 7 6 3 13 11 11 8 9 23 24 20 20 21 12 12 9 4 13 11 9 7 9 6 6 5 4 24 13 4 4 4 5 6 4 1 2 1 1 1 9 7 6 6 3 25 16 7 7 6 4 3 3 2 4 2 2 2 4 4 4 4 3 26 21 12 11 11 10 10 10 1 15 10 9 7 12 12 11 11 5 27 26 22 19 19 24 22 21 18 21 11 11 7 11 9 9 7 5 28 24 21 21 21 24 23 23 19 19 12 12 8 16 15 13 11 8 29 14 11 10 10 7 6 5 3 9 9 9 7 7 5 3 3 3 30 17 12 11 10 12 11 10 7 11 8 8 7 12 11 8 7 4 31 25 15 15 14 14 12 10 7 16 14 10 6 13 11 8 5 4 32 23 16 17 17 7 5 5 6 14 11 10 4 12 7 5 5 5 33 23 6 5 4 16 16 16 13 15 4 4 1 12 8 8 6 6 34 21 19 19 19 17 18 15 19 18 12 12 12 17 17 15 14 13 35 24 10 10 10 5 5 4 3 16 9 8 5 10 9 8 8 7 36 20 15 13 11 18 16 16 8 18 17 4 3 13 13 7 5 4 37 24 14 13 13 20 20 7 7 19 15 13 9 15 11 10 8 4 38 21 15 15 15 13 13 13 12 11 11 11 10 16 14 10 10 3 39 20 10 10 9 9 8 7 2 8 5 3 3 11 7 6 6 4 40 23 22 22 21 14 15 16 13 16 12 9 8 14 8 8 7 5 41 19 11 11 11 4 4 4 0 14 11 10 3 8 6 6 5 4 42 19 16 16 14 13 13 11 8 8 8 7 5 9 9 6 6 5 43 20 16 14 12 14 11 10 5 11 10 10 8 10 10 10 10 3 44 23 14 14 12 16 9 6 5 10 10 9 8 13 13 12 12 10 45 18 11 11 11 3 3 3 2 10 9 8 4 8 7 6 5 4 46 26 14 14 14 10 10 8 5 19 15 15 6 15 13 10 9 5 47 16 11 11 11 10 8 7 6 12 10 10 3 9 7 7 6 5 48 20 11 11 11 10 9 9 8 9 6 6 3 15 14 10 9 3 49 15 4 4 4 7 7 5 2 4 2 2 1 5 4 3 3 3 50 21 6 6 6 6 6 5 4 8 8 7 5 10 8 8 9 5 51 23 9 9 8 13 11 10 5 9 4 4 1 4 4 3 3 3 52 25 24 24 24 19 18 15 11 20 17 13 7 13 12 12 12 6 53 22 20 20 20 15 13 12 8 20 12 12 7 14 11 11 11 6 54 20 14 14 14 6 6 5 5 13 10 8 5 9 6 6 6 3 Total 1139 688 669 651 633 597 511 362 729 529 450 303 616 509 440 399 285 Percentage Pass 60% 59% 57% 56% 52% 45% 32% 64% 46% 40% 27% 54% 45% 39% 35% 25%