My son has really taken a liking to coding this past year. He has been playing around on the Scratch website a ton since getting this book Coding for Kids set a while back. He also learned a bunch from the Dash & Dot Robots we got last year.
Area and perimeter robots. Add a bit of fun and creativity when teaching area and perimeter. Students get the chance to create their own robots using grid paper, solve for the body parts' areas and perimeters, and record them in the robot's speech bubble.