Unit 2: Don't Be Irrational!


Welcome to the world of rational numbers! Throughout the next six lessons in unit 2, you will be immersed in the world of rational numbers, opposites, and the coordinate plane. You may be asking yourself, “Why do I need to learn this?” You will use rational numbers almost every day in your life! The temperature outside, the balance in your bank account, your debt to lenders, when you travel, and when you fly or climb a mountain are examples of when you’ll use rational numbers! For example, if you were a pilot you would need to use the coordinate plane and altitude (elevation). When you fly a plane you start at a specific elevation and must get to your cruising altitude. The pilot will use rational numbers to determine what this latitude is. They must also successfully get you to your final destination on the flight. Pilots use coordinate planes in the form of longitude and latitude to find the exact position. At the end of the unit, you will complete a culminating performance task. During this task, you will apply the various concepts learned in this unit to find a treasure. Now, your adventure awaits! 

Developed By: Rachel Moon & Kirstene Jones

Pre-Unit Assessment

Lesson 1

How Low Can You Go? How High Can You Fly?

Lesson 2

Opposites Galore!

Lesson 3

How Cold Is It?

Lesson 4

I’m Absolutely Positive! Even When I’m Negative

Lesson 5

Corky Coordinates

Lesson 6

To Catch a Thief

Post-Unit Assessment