We will first play with the spinner game to get an exposure to decimal addition in a game form.  Perhaps later, we can code the game itself.

 

Hopscotch code:  https://c.gethopscotch.com/p/psmuddj

YouTube video on how to code this game:

http://www.youtube.com/watch?v=K-ki_nhfL8o

From grade 4 mathematics curriculum:

• demonstrate an understanding of magnitude by counting forward and backwards by 0.1 and
by fractional amounts;

• identify and describe the location of an object, using a grid map, and reflect two-dimensional
shapes.