When was the number line born? And WHY is it GROOVY? It only takes 7 minutes to find out.
This video is an introduction to the number line and the concept of opposites. Thanks for watching!
*If you'd like to assign this for your students to watch at home, please use the YouTube link: https://youtu.be/hJoQJ3HYHr4
If you'd like to support these free videos, please consider the following companion worksheets:
Number Line Part 1: Opposites VIDEO WORKSHEET
Number Line Part 1: Opposites