Subtract within 1000 using various representations, strategies, and algorithms. Warm up with a Mystery Math Mistake to find a mistake made in using an algorithm for addition and subtraction. Subtract ...

Use a variety of representations and strategies add within 1,000. Warm up with a Mystery Math Mistake as you add two 3-digit numbers using a partial sums strategy. Use a variety of representations and ...

In this math tutorial, we look at the traditional methods of maths teaching and problem solving. We discuss how education ...

Why it matters: Choosing the right math approach can build lasting confidence, reduce frustration, and prepare students for ...