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 ...

These student-constructed problems foster collaboration, communication, and a sense of ownership over learning.

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 ...

Opinions expressed by Entrepreneur contributors are their own. Many entrepreneurs immediately concentrate on the issues at hand, which makes it more difficult to come up with solutions because you’re ...