This resource really isn't that great IMHO. For anyone (esp. children) to grasp a new concept it helps to have relatable problems that can be solved in gradual

This resource really isn't that great IMHO. For anyone (esp. children) to grasp a new concept it helps to have relatable problems that can be solved in gradual steps. After dividing up a cookie in Ch. 2 it continues further and starts to discuss proof via harmonics!