While assembling this puzzle, students will practice writing equations of lines given a point and a slope, 2 points, or x- and y-intercepts. Equations of vertical and horizontal lines are also included. The completed puzzle is a 3x3 square with 12 pairs of matched problems / answers as well as unmatched problems & answers around the outside edges.
How to use this activity: Students can complete the puzzle individually or in groups of 2 - 4 students. The student page has the puzzle pieces in a jumbled order, so students will begin by cutting out the pieces. They will solve each problem by finding the slope-intercept form of the equation for the line described. Students match problems with the correct equation found on another puzzle piece. They will tape the edges of those pieces together to form the puzzle. A key is provided so you can see what the completed puzzle will look like. I also allow students to provide answers for the unmatched problems around the outside edge for extra credit.
My students enjoy doing practice in this form because they know immediately if they are solving the problems correctly. As the puzzle comes together, it may not be necessary to solve every problem, but you can certainly require students to show work for solving each problem.