Unit 1
Convincing Arguments
Unit Narrative
During this unit, students will engage in each phase of the proof-writing cycle as they study and review properties of triangles and quadrilaterals. Writing proofs doesn’t mean only providing the reasons for someone else’s claim. Constructing a viable argument includes generating conjectures, detailing specific statements to be proved, writing a proof, and critiquing a proof. Students write proofs, starting with informal justifications and ending with formal proofs using definitions, assertions, and theorems developed in Math 1.
This unit begins by asking students to make observations about triangles. Students use experimental...