This identifying slope from two points puzzle will allow students to demonstrate their understanding of finding slope and determining if it is positive, negative, zero or undefined. There are 12 unique questions on a board for students to work on. Four tiles each are included for positive, negative, zero and undefined. This is an ideal activity for students to strengthen their slope skills. It can be used as a quick assessment, homework, or review. Print Version:Print and cut out each +, –, 0,