# Surf for More Math

## CHAPTER 8: MEASUREMENT

**Lesson 3:** Exploring Perimeter

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**

Design and construct different rectangles with a given perimeter.

**Builds Upon**

Student Book page 263

**Instructions for Use**

**Fence Me In** is an interactive slide show that demonstrates how to find perimeter by counting the side lengths of a rectangle.

Follow the instructions on how to find the perimeter of a rectangle.

**Area and Perimeter** allows students to practise calculating the area or perimeter of rectangles, triangles, and irregular shapes.

Click on “Perimeter” and then click on the rectangle. Follow along with the demonstration, choose a level of difficulty, and then practise.

**Perimeter Explorer** allows students to practise calculating the perimeter of irregular shapes.

You will be given a shape on a grid. Calculate the perimeter, type your answer in the empty text box, and click on “Check Answer” to see if you are correct.