In real life, there aren’t artificial barriers between “subjects”. For example, when you are cooking or baking, you have to use the skills of reading, logical thinking, and measuring, just to name a few. In driving a car, you see and read road signs, read maps, and count miles. It has become quite clear that there is an abundance of math curriculums available that are nothing but monotonous drill sheets dressed up in pretty colors. Pretty colors do not make a living book. Content, story, and the ability to show math in real life make a living math book.
This is by far our favorite math curriculum. The story is engaging and my son wants to do math so he can see what Charlier and Charlotte are doing!