**Title:** Writing and Solving Equations Using Angle Terminology

**Description:**
This lesson will enhance mathematical vocabulary knowledge and reinforce basic skills for solving equations. Mathematical vocabulary is a vital part of this lesson. The lesson will challenge the minds of seventh-grade students with the theory of angles. The student will use the information in the diagram to write an equation and solve for the variable. Terms that will be identified in the lesson are as follows: supplementary, complementary, adjacent, parallel lines and transversal, and vertical angles.
This lesson results from the ALEX Resource Gap Project.

**Standard(s): **

[MA2015] (7) 15: Use facts about supplementary, complementary, vertical, and adjacent angles in a multistep problem to write and solve simple equations for an unknown angle in a figure. [7-G5]