# ALEX Lesson Plan

## Writing and Solving Equations Using Angle Terminology

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This lesson provided by:
 Author: Morgan Boyd Organization: Retirement
General Lesson Information
 Lesson Plan ID: 35591 Title: Writing and Solving Equations Using Angle Terminology Overview/Annotation: 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.
Associated Standards and Objectives
Content Standard(s):
 Mathematics MA2015 (2016) Grade: 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] Alabama Alternate Achievement Standards AAS Standard: M.AAS.7.15- Categorize angles as acute, obtuse, or right (freestanding or within a triangle).

Local/National Standards:

Primary Learning Objective(s):

The student will write an equation from the given information in a figure.

The student will solve equations using inverse operations.

The student will determine if unknown angles in a figure are supplementary, complementary, or equal.

The student will be able to label and determine if angles are equal, complementary, or supplementary.

Using the pictures, the student will be able to explain if the sum of the angles is 180 degrees, 90 degrees, or equal.

Preparation Information