Introduction
One of the key components of geometry is proving theorems. In this lesson, students will test triangle theorems through whole group practice and independently while participating in a “gallery walk” throughout the classroom.
Learning Objectives
(MATH CONTENT.HSG.CO.C.10) Students will prove theorems about triangles. Theorems include: measures of interior angles of a triangle sum to 180 degrees; base angles of isosceles triangles are congruent; the segment joining midpoints of two sides of a triangle is parallel to the third side and half the length; the medians of a triangle meet at a point.
For the full lesson plan, download the PDF.
