Faded Practice – Substituting to Solve Systems of Linear Equations

First, an estimation warm up to make sure everyone understands what we’re trying to do. Then, a mistake analysis problem, … More

Completing the Square

Here’s what I’ve used in class this week, mostly to good effect.

This mistake came via Bowman Dickson: Here is the example/mistake that I came up with for sharing with students: I’m … More

Here’s one of those mistakes that crop up every year. When I hit one of those, I try to “call … More

The example below comes from the Mathematics Enhancement Programme. But — oh no! — a mistake. (I use these materials … More

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