# Surf for More Math

## CHAPTER 5: MEASUREMENT

**Lesson 5: Determining the Volume of Prisms **

Use these interactive activities to encourage students to have fun on the Web while learning about measurement. Students can try these activities on their own or in pairs.

**Goal**

Develop and apply formulas for the volume of prisms.

**Builds Upon**

Student Book pages 217–222

**Instructions for Use**

**Surface Area and Volume** allows students to see how changing the dimensions of a shape changes the surface area and how that, in turn, changes the volume.

Select “Compute” under Mode at the top right of the screen. Manipulate the dimensions of the rectangular prism as you wish. Then calculate the volume and surface area of the shape you created. Remember you can click and drag over the shape to see it from different perspectives.

Enter your answers in the blank text boxes and click “Check Answers” to check your answers.