Dual enrollment opportunities are key to increasing college access, completion, and transfer rates for students who are historically underrepresented in college. Dual enrollment partnerships between colleges and high schools or school districts can focus on a variety of academic subjects to form well-sequenced pathways that meet certificate, degree and/or transfer requirements. Math is central to many programs of study and can serve as a barrier to college access and readiness, making it a crucial area of academic preparation for dual enrollment partnerships to address. This information sheet highlights some of the key issues in mathematics that partnerships should consider when designing dual enrollment opportunities, with a special focus on dual enrollment partnerships in California. The ultimate goal is to support partnerships in understanding the implications of math courses that help students meet early gateway requirements and explore future majors and careers. [This paper was created with Career Ladders Project.]