The women behind "Moebius Noodles: Adventurous Math for the Playground Crowd" are back with another fun math game they call Function Machines.

In this week’s lesson, Junak delves into how machines work and how this relates to a ‘Function Machine’ or ‘Number Machine’ in mathematics.

Using function machines to solve equations Function machines can be used to solve equations by reversing, or finding the inverse of the steps.

A function takes an input value, applies a rule to it, and produces an output value. This can be demonstrated using a function machine. The function, multiply by 3 and then subtract 1, can be ...