Mathematics 5

# Surf for More Math

## Lesson 5 - Communicate About Estimation Strategies

To encourage your child to have fun on the Web while learning about Communicate About Estimation Strategies, here are some games and interactive activities they can do on their own or in pairs.

### Goal

Explain estimation strategies to determine if a solution is reasonable.

### Builds Upon

Student Book pages 258-259

### Instructions for Use

The Comparison Estimator provides your child with opportunities to practice estimation skills. Your child can compare amounts by estimating the number of objects in two boxes.

To use the Comparison Estimator, set the problem type to 'Random'. To answer a question, choose an item from the pull-down menu that best completes the sentence - "greater than," "less than," or "almost the same as." If you choose "almost the same as," the two shapes must be within 5% (either above or below) of the actual answer. Click the 'Check Answer' button to see if it is correct. Try the next question.