Curated OER
Math with Homer Simpson
In this exploration worksheet, students work with squares and square roots to prove or disprove Homer Simpson's formulas. There are 3 formulas to prove.
Curated OER
Fact and Opinion
In this writing activity, students identify and describe the difference between a fact and an opinion. They place the cut-up words from the house ad in the correct column to indicate if they are fact or opinion.
Purple Math
Purplemath: Proving Trigonometric Identities
An "identity" is a tautology, an equation or statement that is always true, no matter what. Proving an identity is very different in concept from solving an equation. This resource demonstrates some useful techniques for proving...
CK-12 Foundation
Ck 12: 3.3 Inverse Functions
This section explores the process for finding inverses of functions, and then proving the function and its inverse algebraically. Additionally, it explores how the graphs of functions and their inverses compare to each other, and it...