Adding Integers Using a Number Line

This lesson teaches how to add integers using a number line. It begins with adding a positive integer to a negative integer, demonstrating the process of counting to the right. Then, it covers adding two negative integers by counting to the left. Another example shows adding a negative integer to a positive integer. The lesson emphasizes the importance of direction when adding positive or negative numbers. By the end, students will understand how to represent integer addition on a number line.

When adding 15 and negative 8, which direction do you move on the number line?

What is the final result of adding 15 and negative 8?