K – CO – RT5

Your physical education teacher is teaching students how to properly throw a ball. The teacher provides students with different-sized balls that all weigh differently. Explain the weight difference in the balls.

K – CC – PP4

Provide students with a set of 6 items. Ask students to count the items and tell you how many are in the set.

K – CO – RT6

You want to put the counters from the math center into two bags. Your goal is to have one bag a lot heavier than the other bag. Explain your thinking as you work towards your goal.

K – CC – PP5

Provide students with a set of 9 items. Ask students to count the items and tell you how many are in the set.

K – CO – RT7

The look of objects can be misleading. Find two things in your classroom that look like they have the same mass but are actually very different. What are the two items? Can you explain the difference in mass?

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