## All Lessons

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### Hitting Your Mark

Darts is a popular game in which players throw 3 darts, one at a time, aiming for a target. Different regions of the board give different points. In this lesson, students learn how to change the scale of an object, and how to measure and draw angles using a protractor. By the end of the lesson, students have created their own dartboard. The dartboard can later serve to emphasize properties of angles and angle pairs. This activity is a good one to do prior to a lesson in which students construct circle graphs. The practice they will get in this lesson drawing circles and measuring angles will help them in their quest to more accurately create circle graphs.

### Geology Rocks Equations

*x*.

### Graphs from the Unit Circle

### Fractional Clothesline

### Feeding Frenzy

### Hay Bale Farmer

### Equations of Attack

*y*-axis represent cannons and slopes are chosen randomly to determine the line and equation of attacks. Students will use their math skills and strategy to sink their opponent's ships and win the game. After the game, an algebraic approach to the game is investigated.

### Describe the Graph

### A Swath of Red

### Adding It All Up

### Building Height

### Area Contractor

### Extending to Symbols

### Alike and Different

### Grandma's Button Box

### Exploring Equations

### Dividing a Town into Pizza Delivery Regions

Students will construct perpendicular bisectors, find circumcenters, calculate area, and use proportions to explore the following problem:

You are the owner of five pizzerias in the town of Squaresville. To ensure minimal delivery times, you devise a system in which customers call a central phone number and get transferred to the pizzeria that is closest to them. How should you divide the town into five regions so that every house receives delivery from the closest pizzeria? Also, how many people should staff each location based on coverage area?

### From Fish Food to Pictures to Symbols

*greater than*,

*less than*, and

*equal to*by observing quantities and making comparisons using various instructional materials. The fish cut-out, with its mouth open, represents the greater than or less than symbol; the clam cut-out represents the equal to symbol. Using fish lips as a transition point, students will apply their understanding of

*greater*,

*less*, and

*equal*to the standard symbols (>, <, =) as you introduce symbolic notation at a developmentally appropriate level.

### Fish Food, More or Less

Students are introduced to the concepts of *greater than*, *less than* and *equal to*
by observing quantities and making comparisons. Using various
instructional materials such as modeling clay, buttons, beans, and
cotton balls, students create amounts to compare using the open-mouthed
fish. Depending which fish is chosen, the fish cut-out (with its mouth
open) represents either *greater than* or *less than*. For equivalent amounts, a clam cut-out represents *equal to*.

This introductory lesson can be assessed through visual observation and verbal questioning. A group size of 3 – 6 students per group is optimal.