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 ...

Many school districts and policymakers are stepping up efforts to teach students the skills they need to be prepared for the jobs of the future. One big area of focus is STEM. Jobs in science, ...