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Intro to Adding/Subtracting Rational Numbers
How can you add two numbers and arrive at zero? Use negative integers! Assign each group a different problem to solve as a team. The lesson plan says to have them use Geometer's Sketchpad® to check their answers, but if you do not have...
6th - 8th Math CCSS: Designed
Positive and Negative Numbers
Contest winner? Use this story about winning tickets to an NFL football game to plot numbers on a number line. Identify positive and negative values in the story and use the worksheet provided to plot out temperature, altitude, and money...
5th - 7th Math CCSS: Designed
Chapter 2: Integers & the Number Line
Here is an extensive set of teacher's notes to help you teach all about integers. Begin by introducing a number line and how it can be used to visualize positive and negative numbers. Talk about absolute value and the additive inverse...
6th - 8th Math CCSS: Adaptable
Add Rational Numbers Using Algorithms and Number Lines
Remind number crunchers that integers and rational numbers are related by using the Venn diagram shown in this video. It applies what students have learned about integers to all rational numbers. Reviewing absolute value, it shows how to...
4 mins 6th - 8th Math CCSS: Designed
Using Positive and Negative Numbers in Context
Measure the temperature of your math class with a temperature-based lesson on adding and subtracting rational numbers. The thermometer serves as a vertical number line for learners as they work together to solve a temperature change...
6th - 8th Math CCSS: Designed
Combine Opposite Rational Numbers on a Number Line
A review of rational numbers makes this video worth showing. Typically taught with integers, learners reason that fractions and decimals are rational and apply it to this standard. Students see a real-world example where money earned and...
3 mins 6th - 8th Math CCSS: Designed
Locate Rational Numbers Using a Number Line
Organize fractions and decimals all on one number line. This last video of a seven-part series places different numbers onto horizontal and vertical number lines and shows their relationship to one another. Learners are expected to know...
4 mins 5th - 7th Math CCSS: Designed
Compare Two Positive or Negative Numbers in Real-World Situations
Expand into negative numbers with examples on a vertical number line. Practice real-world examples of temperature and below sea level to see which number has a higher value. Use with other videos in this series of four for more practice...
5 mins 5th - 7th Math CCSS: Designed
Find the Value of a Number Using its Distance and Direction from Zero
Show young mathematicians an animated way to look at positive and negative numbers. The video relates the real-world use of money and temperature on vertical and horizontal number lines. It is a great introduction to the coordinate plane...
3 mins 5th - 7th Math CCSS: Designed