Click on the link below for the "2-120 Student eTool".
1. Select among:
- Left-hand Rectangles
- Right-hand Rectangles
- Trapezoids
![Select among:](https://media.screensteps.com/image_assets/assets/006/837/027/original/63d534ee-4057-45f2-a159-1719f0f6c686.png)
2. Left-hand Rectangles:
![Left-hand Rectangles:](https://media.screensteps.com/image_assets/assets/006/837/029/original/659e51e5-b166-4ede-96f9-86c1a258f57f.png)
3. Right-hand Rectangles:
![Right-hand Rectangles:](https://media.screensteps.com/image_assets/assets/006/837/031/original/d5b198d2-1631-40e1-a11c-5b8fb91ab97a.png)
4. Trapezoids:
Also:
- Select number of partitions
- Change Lower Bound
- Change Upper Bound
![Trapezoids:](https://media.screensteps.com/image_assets/assets/006/837/033/original/9549814c-52e9-4ae0-bb8b-94cd11f93c53.png)