**EQ: How do I simplify algebraic expressions and substitute for variables?**

MCC7.EE1. Apply properties of operations to expand linear expressions MCC7.EE.2. Understand how to rewrite an expression

Welcome! We're going to work our Math Brain Muscles in todays lesson. Click on the images to access the links below. Follow directions carefully.

**WARM UP**: Practice adding and subtracting like terms. Each page will have one problem. Type your answer into the box provided on the webpage. The page will track your accuracy and your timing.

**WORK OUT**: Play Hockey! Click on the correct answer before the hockey puck hits it! You can track your wins and tries at the bottom corner of the *Hockey Rink*.

**TEST YOUR STRENGTH**: This will be a quiz grade. There are five problems. You will be asked to add, subtract and multiply after substituting for the variable(s) in each problem. Each variable on the page is assigned a value; use the value of the variable to solve the problem. Type your answer into the box and hit the GREEN CIRCLE when you are done. Think carefully! Answer can be negative numbers.

When you complete the quiz, show your teacher or Mrs. Chaney your score.

**COOL DOWN**: This site will allow you to practice working problems with positive and negative numbers. On the page you will see small boxes with math problems and a large yellow box with numbers. Click on a math problem and the correct answer from the choices in the yellow box. If you are correct it will reveal a box from the mystery picture.

*When the link opens there will probably be an advertisement... just click ** close**.

STRETCH YOUR MUSCLES: Practice working with negative and positive numbers. Click on the solution before it gets gobbled up by a fish!