Using a Math Pre-Test in a Large General Education Geoscience Course: How Effective?

Teaching large (150 or more students) General Education Geoscience courses presents many challenges, but one of the most important is how to effectively incorporate quantitative literacy. Many students are math phobic, and will run to General Education courses that minimize quantitative aspects. I will present results from one approach that we have used successfully for at least two years: a math pre-test. Our General Education Geoscience course has no prerequisites other than admission to the University, and is designed for first and second year non-science students. Fortunately, with limited exceptions, all entering students at the University of Arizona take a Math Readiness Test (MRT) for math placement. With the cooperation of the Mathematics Department, we have used old MRT exams to selectively use questions that are of the highest utility for the course material `understanding graphs, linear equations and extrapolations, scientific notation and large numbers, word problems, and scaling/unit conversions. We administer the exam in the first discussion section. Students receive full credit for a `serious effort', and we score the exam. In recent semesters the percentage of correct answers has varied from just under 50% to nearly 90% on individual questions. The pre-test has several important benefits. First, it lets students know clearly up front that there will be mathematics in the class. Second, it lets students know the range of skills expected to be successful. Third, because the average score is between 70-80% it gives students confidence that they can do the math in the course. Fourth, we contact all students who score less than 50%, and offer help, including referral to tutoring service in Mathematics. Feedback from students has been positive. Unfortunately, when we compared scores on the math pre-test to final grades in the course, we found essentially no correlation. We are exploring a number of possible explanations. We are also seeing if our math pre-test scores correlate with the initial MRT score, and overall student success.