This powerpoint is intended to be printed off and posted either around the school or around the classroom. Students will then start at any sheet and solve to problem presented on the bottom of that sheet. The will then put their answer in the appropriate box on their answer sheet (provided at the bottom of the powerpoint). Once they have their answer, they will find the sheet with their answer at the top and proceed to that station to solve that problem. Once students have solved all problems, they should end up at the same place they began. This allows students to self-assess their own work. If their answer is not present on another station sheet, then they must have done something incorrectly.