In this lesson, Mr. Perez and his assistant, Charlie, teach how to add negative numbers using a number line and sign language interpretation. They start with basic subtraction, then use the commutative property for addition to show how negative numbers can be added. Through several examples, they demonstrate how adding a negative number is the same as subtraction, and encourage students to write out the middle steps to help them better understand the concept. The lesson emphasizes the importance of practice and encourages students to keep working towards mastering this skill.
How to add negative numbers using a number line, with sign language interpretation.
Created by and copyright of Larry Perez. Funded by the state of California through Saddleback College. More information on videos, resources, and lessons at Algebra2Go.