# Algebra 1

## 4 - The number line

**Read about**: the number line (scroll below the video to get to the reading material)

**Watch a video**: How to read a number line

**Need more videos?**

**Do the practice**: Number line practice

**Send an email** with the subject line of "Algebra lesson 2 - the number line" with answers to the following questions.

- Why are there arrows on the number line?
- What are the benchmarks on a number line?
- Can a number line be diagonal?
- Give an example of a number line that is used every day in the cold winter and hot summer.