Students will solve angle addition sentences using a folded paper model.
Introduction
(5 minutes)
Hold the folded paper teacher model up and ask your class to turn to a neighbor and tell them what it reminds them of and why (i.e. typical ideas include "origami" or "paper airplane").
Call on students to share their ideas with the class.
Open your model, draw lines along the creases, and announce that the class will be exploring ways to add these angles.