Ella wrote about stacking Oreos and made two stacks of 18 cookies each. She estimated she could stack 28 Oreos but only achieved 18 cookies per stack. The document also mentions graphs made by Ella's class and the world related to Oreo stacking.

1. My Oreo BookBy: Ella

2. My Oreo StackMy estimate:28My first stack:18My second stack:18

3. Our Class Graph

4. World Graph

6. Oreo Sculpture