At the end of Just about every time period, the student chooses the classes they want to choose. On each course, the students are detailed by their CR (which is UFABC's Variation with the GPA) and the 1st types will go to that class on the next period of time. https://angeloevivh.yomoblog.com/39691113/ufa-things-to-know-before-you-buy