DFW Rates and Predictive Modeling
Ds Fs and W grades have traditionally been a sticking point for any freshman level Calculus course in Mathematics. In the Fall of 2011 these rates for Math 1125 Calculus 1a reached an all time high of 48 percent. This summer several different steps were taken to correct this situation. Data on grades of students was analyzed using linear regression. Predictors such as algebra skills were identified as the critical content related issues that have posed high level of difficulties for students. Corrective measures to incorporate various pre-calculus materials in a more organized and effective manner were taken. Pretests were used to assess the initial knowledge of students on pre-calculus topics. Predictive models are underdevelopment to accurately forecast student grades on exams using indicator questions.
As a result of the analysis conducted over a period of two semesters, it was concluded that the Math 1125 and Math 1126 sequence was not achieving the desired results in student understanding and performance. The sequence has now been discontinued and Pre-calculus course has been revamped to suit student needs to be better prepared for the regular calculus sequence.