# Surf for More Math

## CHAPTER 1: NUMBER RELATIONSHIPS

**Lesson 7: Solve Problems Using Diagrams **

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

**Goal**

Use diagrams to solve problems about squares and square roots.

**Builds Upon**

Student Book pages 32–35

**Instructions for Use**

**Using the Pythagorean Theorem** allows students to practice using the Pythagorean Theorem to solve problems.

Now that you know how the Pythagorean theorem works (a2 + b2 = c2), you can use it to solve all kinds of problems. Try the Pythagorean theorem with either “baseball” or “ladder” problems.