Integer subtraction

I recently finished another video of mine, this time on the topic of subtraction of integers. You can watch it here:


Subtracting Integers


In it, I explain three different models that we can use to justify the rules for subtracting integers to the students. The three models are:

1) number line jumps;
2) concept of difference;
3) counters.

Please read about these models in more detail in my updated article How to teach operations with integers.
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