I was out on Wednesday for professional development for CALL training, being aware of ELL students and creating authentic "HGO notes" that are usually used for a pre-read. I lead this on my document camera and my 1st period 8th grader Curtis produced this document from CPM's CC3 lesson 8.3.1.
Functions are simple if you understand the vertical line test and how to analyze a table by thinking about the definition of a function.
I only used 2 colors but Curtis used plenty of highlighter as you can see. Great effort and concentration.