In an all equal LOs configuration, all course LOs are given equal priority. Students earn their letter grade based on the total number of LOs met. Frequently this configuration is used in advanced or elective courses. For example, in Carlisle's differential equations course, the content is split into 20 "problem topics." Students must pass 14 of the topics to earn a C, 17 to earn a B, and all 20 to earn an A . Similarly, in Mendez's sophomore-level thermodynamics course, there are 15 LOs and each is assessed by one quiz . Students must pass 11 quizzes to earn a C, 13 for a B, and all 15 for an A.