What would it be like to sell your eggs to a couple who can't have children on their own? Could you even imagine it? As most of us have never been in this position, this descriptive essay is really quite interesting. The reading itself...

Here is a worksheet in which learners identify and compare economic systems (market, command, mixed, etc.) with 18 fill-in-the-blank questions and a graphic organizer. 

How do you know you know? Prove it! The guide goes through several examples and includes a link to a video to teach learners how to work through coordinate proofs. The goal is to prove that different shapes are indeed that shape.