Teachers, save “Open Middle - Baking Cookies Challenge” to assign it to your class.

Read through and complete the Open Middle Challenge... 1. Tap on 2. Read over the problem on Slides #1 and #2 carefully. 3. Solve the task using the , , or tools on Slides #3-5. If you prefer, you can solve the problem on a whiteboard or piece of paper, then take and share a of your work. 4. Be sure to show at least three different equations. (Don't forget the challenge is to show as many ways to solve this equation as possible!) 5. Use the tool to share your equations and explain your thoughts and strategies. 6. Tap on the to add this task to your journal.