Grade K

Read the Headline Story to the class. Encourage children to make up sentences or stories about sharing the marbles. One way to explore the mathematical relationships is to make a table of possible combinations showing how 10 marbles can be shared.

Amir had 10 marbles. Amir’s friend did not have any marbles. Amir gave some marbles to his friend.

- If Amir gave one marble to his friend Amir would have nine marbles left.
- The story says he gave some marbles, so I think he gave more than one.
- If he gave his friend two marbles, Amir would have eight marbles left.
- If Amir gave his friend five marbles, they would each have the same number if marbles.
- I can write a number sentence that shows this: 5 + 5 = 10.
- I can make a table to show the possible ways to share 10 marbles. One row of the table would show the number of marbles Amir has, the other row would show how many marbles his friend has. The numbers in each row of the table would add up to 10.

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