Click on the links below.
1. 4-71 Student eTool
- Use mathematical symbols (numbers, variables, and operations) to record the area of this collection of tiles.
- Write at least three different algebraic expressions that represent the area of this tile collection.
![4-71 Student eTool](https://media.screensteps.com/image_assets/assets/003/985/275/original/54e32118-e908-4bbe-8941-e52cf1c4b75d.png)
2. CC2 4-72a Student eTool:
![CC2 4-72a Student eTool:](https://media.screensteps.com/image_assets/assets/001/208/600/original/513fc4d2-e827-4d02-be6b-cde67129b4d1.png)
3. CC2 4-72b Student eTool:
![CC2 4-72b Student eTool:](https://media.screensteps.com/image_assets/assets/001/208/602/original/af8cb96a-18fc-480b-be0f-3f874c4ab59b.png)
4. CC2 4-72c Student eTool:
![CC2 4-72c Student eTool:](https://media.screensteps.com/image_assets/assets/001/208/604/original/7c49ebac-a3dc-4fdc-a6d0-488389fcb43e.png)