Introductory calculus is mandatory for postsecondary science, technology, engineering, and mathematics (STEM) majors (Bressoud, 2015); however, many students do not persist through introductory calculus to further STEM study (Rasmussen et al., 2019). One reason for this may be that students struggle with the prior mathematical knowledge required…

Most biochemistry, genetics, cell biology, and molecular biology classes have extensive prerequisite or co-requisite requirements, often including introductory chemistry, introductory biology, and organic chemistry coursework. But what is the function of these prerequisites? While it seems logical that a basic understanding of biological and…

This study by the San Diego Community College District (SDCCD), California, aims to determine the impact of prerequisite enforcement on retention and course completion rates in English and math courses among underrepresented students. The report analyzed a subset of the more than 300 prerequisite-enforced courses offered by the SDCCD. The course…

This document is part of the series, "New Expeditions: Charting the Second Century of Community Colleges," sponsored by the W.K. Kellogg Foundation Initiative. This paper addresses the issues related to access at community colleges. Increases in high school completion rates have generated an enormous demand for higher education, much of which is…