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 ...

Learn about inverse operations with Zoe Kleinmann. Learn about inverse operations while playing a math game with Zoe Kleinmann and Milena. Explore how addition and subtraction are inverse operations.

Space to play or pause, M to mute, left and right arrows to seek, up and down arrows for volume. Hi, I'm Miss James. Thank you so much for being here today with me. For this lesson, all you will need ...

Figure 2: Five-year-old children’s performance on approximate addition, subtraction and comparison problems. What processes underlie children’s symbolic approximate arithmetic? We first considered ...