# All Angle Relationships - Fluency

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## Objective

Students will apply their knowledge of angle relationships to set up and solve equations to find missing values.

#### Big Idea

Equations and geometry - a match made in heaven!

## Launch

10 minutes

OpenerAs students enter the room, they will immediately pick up and begin working on the opener – Instructional Strategy - Process for openers  This method of working and going over the opener lends itself to allow students to construct viable arguments and critique the reasoning of others, which is mathematical practice 3

Learning Target:  After completion of the opener, I will address the day’s learning targets to the students.  For today’s lesson, the intended target is “I can set up equations using angle relationships in order to solve for missing values."

## Explore

45 minutes

Spinner Game (Smartboard Spinner Game) Today students are going to work in their table groups to play the "spinner game."  The questions included in the game are a variety of equations meet angles problems.  Each table will have a white board and they must show all their work for solving for the variable and/or the angle measure (once they are really good with solving for x, I like to work on plugging it back in and solving for the entire angle measure).  Tables that solve the problem correctly will get the chance to spin the spinner for points, candy or stamps.  The winning table at the end of the game will get an additional prize.

5 minutes