Solve real world problems with addition and subtraction within 1,000. Warm up with a Mystery Math Mistake as you add two 2-digit numbers using a decomposition strategy. Use visual models and place ...

Solve word problems using a checklist. Engage in a Number Talk to find "how many." Solve addition and subtraction word problems with a Step-by-Step Visual Model checklist. Understand what the problem ...

If there are nine people in a room and every person shakes hands exactly once with each of the other people, how many handshakes will there be? How can you prove your answer is correct using a model ...

A member of our research community, Terhi Vessonen and her co-authors, looked into how different characteristics of mathematical word problem-solving tasks may influence elementary schooler’s ...

From the time you were a child, you've been solving problems. The problems started out small but then grew in complexity as you developed in ability, progressing from jigsaw puzzles and mathematical ...