Playlist - Integer Subtraction

In this video, we introduce the idea of subtracting integers by using simple subtraction of a positive by a positive (black squares) and negative subtracting a negative (red squares). We then offer a notice and wonder situation when we give black squares, followed by the introduction of a...

In this post, we continue our work around integers from a visual perspective. You should definitely use the other integer posts first prior to attempting this task as students intuitively build an understanding progressively through each activity. Here, we continue working with...

In this visualization video, we re-introduce the zero principle to subtracting positive and negative integers. By showing black and red squares combining and disappearing as well as black and red squares re-appearing in an attempt to show that we can add more squares of one colour as long...

Let's continue exploring integer subtraction, but this time using a number line as a tool to subtract positive and negative values as well as represent our thinking.

Let's continue exploring integer subtraction, 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!