This Challenge Enrichment is a wonderful add to any problem of the week, problem of the day, station or center idea, small group challenge, etc. Use tiles 1-9, place them in the corresponding circles so that all sides of the triangle have the same sum. Comes with a blank template that can be laminated, and one "filled out" template so you can cut out the circular numbers. This will turn this challenge into a "hands on" activity and allow students to move around the pieces. Have fun!!