[Short Story] Pausing before 'swapping x and y' in inverse functions. Explanations from 14 teachers fell into three types based on how they handled that step.

The moment I write on the board in an inverse function lesson, 'Solve for x, then swap x and y,' some students in the ...
Purdue University

Understanding Differentiation

In the Introduction to the Derivative video we introduce the notion of the derivative of a function and explain how the derivative captures the instantaneous rate of change of a function. In the ...