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 Lesson Plans (14) Interactives/Games (1) Learning Activities (1)

## ALEX Lesson Plans

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Subject: Mathematics (8 - 12)
Title: Penny Drop That Thang!
Description: This lesson is designed to introduce and extend students' knowledge on slope and linear equations.  Students will be able to differentiate finding the slope to creating a linear equation. This is a College- and Career-Ready Standards showcase lesson plan.

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Subject: Mathematics (9 - 12)
Title: Focusing on Graphs
Description: In this lesson, students will solve systems of linear equations by graphing.  Systems of linear equations are two or more linear equations together.

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Subject: Mathematics (8 - 12)
Title: Why so Cross?
Description: This lesson will help students develop a deep understanding of what the solution to a system of linear equations means.  They will investigate the graphs of systems as well as experiment with an online graphing calculator.

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Subject: Mathematics (9 - 12)
Title: When Will Mr. "X" Meet Miss "Y"?
Description: During this lesson, students will solve systems of equations graphically. Students will graph various equations individually using graphing paper.  They will work with a partner to solve several system of equation problems and then graph them on chart paper to be displayed throughout the classroom.

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Subject: Mathematics (9 - 12)
Description:   Students will learn how a system of equations can be used to find the best use of information to make decisions in real-world situations.Students will work in groups of 3s or 4s to develop a system for the best buy on tickets at a water park. The lesson is also designed to help students develop a budget or a plan when their spending money is limited. Students will find that sometimes group prices or working as a team will help them save money.

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Subject: Mathematics (9 - 12)
Title: Battleships
Description: This lesson is designed to review and reinforce three methods (graphing, substitution and elimination) of solving systems of linear equations.  The students will work together and independently to find the solutions to systems of equations that simulate the linear path of the battleship and the path of the battleships’ torpedo. If the solution exists then we will be able to determine if one battleship might be able to sink another.  (Shared with permission of Twyla Fryer.)This lesson plan was created as a result of the Girls Engaged in Math and Science University, GEMS-U Project.

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Subject: Character Education (K - 12), or Mathematics (9 - 12)
Title: Systems on a Mission
Description: Students will solve systems of equations using 4 different methods. These methods include substitution, elimination by multiplication, elimination by addition or subtraction and graphing. Students will gain knowledge on how to use one method to solve a system of equations and another method to check their solution. This lesson plan was created as a result of the Girls Engaged in Math and Science, GEMS Project funded by the Malone Family Foundation.

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Subject: Mathematics (8 - 12)
Description: This is an inquiry lesson used to review Algebra 1 objectives by applying them to geometry concepts. Students explore the properties of quadrilaterals and classify them by definition. This lesson can be use in geometry classes. Students in geometry classes can apply theorems and definitions of quadrilaterals rather than as an inquiry lesson.This lesson plan was created as a result of the Girls Engaged in Math and Science, GEMS Project funded by the Malone Family Foundation.

## Thinkfinity Lesson Plans

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Subject: Mathematics
Title: There Has to Be a System for This Sweet Problem
Description: In this Illuminations lesson, students use problem-solving skills to find the solution to a multi-variable problem that is solved by manipulating linear equations. The problem has one solution, but there are multiple variations in how to reach that solution.
Thinkfinity Partner: Illuminations

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Subject: Mathematics,Social Studies
Title: Supply and Demand
Description: Students write and solve a number of systems of linear equations in the context economics as supply and demand. Students should be familiar with finding linear equations from two points or slope and y-intercept.
Thinkfinity Partner: Illuminations

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Subject: Mathematics
Title: Pick's Theorem as a System of Equations
Description: In this lesson, one of a multi-part unit from Illuminations, students gather three examples from a geoboard or other representation to generate a system of equations. The solution provides the coefficients for Pick s Theorem.
Thinkfinity Partner: Illuminations

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Subject: Mathematics
Title: Escape from the Tomb
Description: In this Illuminations lesson, students solve a system of equations when presented with a problem: two bowls are suspended from the ceiling by springs and one bowl is lower than the other. Placing only marbles in one bowl and bingo chips in the other, students must work out how many items should be placed in each bowl so that the heights of the bowls are the same. There are also links to online activity sheets.
Thinkfinity Partner: Illuminations

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Subject: Mathematics
Title: Escape from the Tomb Activity
Description: This reproducible activity sheet, from an Illuminations lesson, includes instructions and questions for a mathematical adventure game. In the game, students are given a problem in which two bowls are suspended from the ceiling by springs, and one bowl is lower than the other. Students must work out how many items should be placed in each bowl so that the heights of the bowls are the same.
Thinkfinity Partner: Illuminations

## Web Resources

### Lesson Plans

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Supply and Demand
http://illuminations...
In this lesson, students write and solve a system of linear equations in a real-world setting. Students should be familiar with finding linear equations from 2 points or from the slope and y-intercept. Graphing calculators are not necessary for this activity, but could be used to extend the ideas found on the second activity sheet.

### Interactives/Games

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Online Algebra Problem Solver
http://www.algebra-o...
Online Algebra Solver allows students to create equations related to a variety of areas of math and solve them online.

### Learning Activities

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Online Algebra Problem Solver
http://www.algebra-o...
Online Algebra Solver allows students to create equations related to a variety of areas of math and solve them online.