The ruler is introduced in challenge 2 of Coding Adventure Part 1.
To use the ruler:
- Locate the ruler on the upper left corner and click on it.
- Place the ruler on an object and click.
- Move the mouse to the next object, the one you wanted to measure the distance with, and you will see the distance.
You will also meet a life-like ruler in our Dodo Does Math Distances course and Dodo Does Math Hour of Code: