## Adding Positive and Negative Integers

Adding and subtracting integers can be a challenge for many students. When students struggle with this idea, we often resort to memory tricks. Unfortunately, when students only know how to use tricks and lack the necessary conceptual understanding to apply concepts to new ideas, students...

## Adding Positive and Negative Integers, Part 2

Last time, we added positive and negative integers using black and red squares. Now we will show the red squares first and students see that the rules are the same.

## Integer Addition Using Number Lines

In yet another video focusing on addition and subtraction of positive and negative integers, we introduce a number line as a tool to help organize our thinking. The video shown at the top of the post has the entire visual progression. However, the video is chunked into smaller pieces...

## Integer Addition Using Number Lines and Symbolic Notation

Let's continue exploring integer addition, but this time we will progress from using colour alone to represent the opposite signs of positive and negative values and explicitly write out these expressions and equations mathematically!