# Lesson 5 Estimate on a Number Line

Let’s estimate numbers on a number line.

## Warm-up Estimation Exploration: What Number?

What number could this be?

Record an estimate that is:

too low

about right

too high

Record an estimate that is:

too low

about right

too high

## Activity 1 Estimate the Numbers

What number could this be?

What number could this be?

What number could this be?

What number could this be?

Which estimate are you most confident in? Why?

Which estimate are you least confident in? Why?

## Activity 2 Order the Numbers

Pick a card and place it on the number line.

Explain your thinking.

As a group, revise the position of any cards.

Repeat until all cards are placed.

Draw and label points to represent each number on the number line.

## Practice Problem

## Problem 1

What number could this be? Explain your reasoning.