If you want to become an Actionmature, you need to master three distinct skills:

Most people have a fight-or-flight reflex. Actionmatures have a pause-forward reflex. When a crisis hits, they pause for exactly three seconds—not to freeze, but to locate the leverage point. Then, they move forward with surgical precision.

" includes sections on "action models"—paper figures that move—to teach mathematical principles like induction and tessellation.