The cornerstone of 8th grade math is learning about slope and y-intercept. Basically, it’s all things functions for the majority of 8th grade. What I realized a few years ago is that comparing functions is a multi-faceted beast. It seems simple at first, just find the slope on both functions and compare. Then, I realized that students have to be able to find slope in at least 4 different ways. As a part of that they have to recognize if it is positive or negative. Then, you introduce y-intercept in its many representations and they have to understand that they aren’t related to each other. So, in this post I’ve compiled ten activities that help students get lots of practice comparing functions in several different ways. [Read more…] about 10 Activities to Make Comparing Functions Engaging