Always think a year ahead!
Know your degree program requirements.
Know the course prerequisites for courses in your program.
Most 200-level and above courses have specific prerequisites. For example, HLTH 205/3.0 requires HLTH 101/3.0 and admission into second year of a HLTH degree program.
Know the course exclusions for courses in your program.
You cannot take two courses for credit with significant overlap in course content. For example, students in the medial HLTH program need to decide whether to take KNPE 251/3.0 Introduction to Statistics or another the statistics course required by the alternative concentration (e.g. ECON 250/3.0, PSYC 202/3.0, etc.). If students take the alternative course, they will replace the core course requirement with an alternative HLTH concentration option course.
Plan for the unexpected.
Not every 300- and 400-level course is offered every year due to faculty sabbaticals and other professional commitments. Students who take a range of courses at the 100- and 200 level will have more prerequisites for a wider choice of these upper-year courses.