Put the arrows in order from the longest to the shortest. 1. Tap the green add button. 2. Click the move button Now you can move each arrow to the correct spot so that the longest arrow is on top then the medium size arrow underneath and the shortest arrow on the bottom. 3. Once all the arrows are in the right order, from longest to shortest, click the record button and to tell me your thinking. Why did you put each arrow in that position? How do you know which one is the longest or shortest? 4. Click the green check mark and your name. 5. Click the green check mark once again to be done.