Learning Outcome: To demonstrate critical mathematical thinking and used reasoned argument. Share your "Which one doesn't belong?" grid from the Mathematics lesson. 1. Tap the icon. 2. Choose the tool and take a picture of your grid. 3. Add the Which one doesn't belong? 4. Tap the icon to upload your work. 5. Look at other students' work and tap the icon to add your thinking. Don't forget to explain why you think something doesn't belong.