Making Odd-Numbered Groups

Groups of 3 or 5 students can be made in any class size from 8 to 41 students by making 0, 1 or 2 groups of 5 students; the remaining number can be made into groups of 3 students. For smaller class sizes, you may need to include yourself in a group to make all groups odd-numbered. For larger class sizes, you may need to make more groups of 5 students, until the remaining number is divisible by 3.