# ALEX Lesson Plan

## Can You Solve the Mystery of the Variable?

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This lesson provided by:
 Author: Michelle Russell System: Florence City School: Florence High School
General Lesson Information
 Lesson Plan ID: 35680 Title: Can You Solve the Mystery of the Variable? Overview/Annotation: This lesson will help students master Algebra I standard 15: Rearrange formulas to highlight a quantity of interest, using the same reasoning as in solving equations [A-CED4]. The lesson will make the connection between isolating a guilty person in a “who-dun-it” with isolating a given variable in an equation. In addition, this lesson will involve students creating a list of procedures to use when solving for a given variable. At this time it is not necessary for students to know the formal names for the properties. It is important for students to understand the concepts and take part in creating a set of procedures for isolating a variable and solving equations.This lesson results from the ALEX Resource Gap Project.
Associated Standards and Objectives
Content Standard(s):
 Mathematics MA2015 (2016) Grade: 9-12 Algebra I 15 ) Rearrange formulas to highlight a quantity of interest, using the same reasoning as in solving equations. [A-CED4] Example: Rearrange Ohm's law V = IR to highlight resistance R.

Local/National Standards:

Primary Learning Objective(s):

The student will be able to solve an equation for a given variable in an equation.

The student will be able to create a set of procedures to serve as a reference when solving an equation for a given variable as demonstrated by creating three procedures to use when solving an equation.