The Chain Rule is probably one of the hardest topics to teach in the Calculus & Vectors course and it is one that I find many students have a hard time grasping it. Probably because there are so many steps and once the functions get a little more complex, there is more room for error. Rachel came up with such a unique and simplistic way of teaching the chain rule. She had all of us pretend that we were back in elementary school and she modelled the chain rule using shoeboxes and peeling plastic fruit as an analogy. So creative! She simplified it in a way that made it more memorable and it is a method that will probably stick with students for life! She equated opening the shoebox to using the power rule (taking the derivative of the outer function), and then taking the fruit out of the box would always result in a multiplication. Then, she equated peeling the fruit to taking the derivative of that fruit (the inner function). Sometimes, thinking of analogies such as these w...