K – CC – RT8

David loved his collection of hockey cards. He had the same amount for a long time, however each time he counted he was getting different amounts. How is this possible? What advice would you give David?

K – RP – RT1

You found two items to use when making a pattern. You have a lot more of one item than the other. What pattern can you make?

K – CC – RT1

Tanya said that the way she arranged her books changed the amount she had in her collection. What advice about counting would you give to Tanya?

K – CC – RT2

Two students were asked to count all the marbles in a collection. After counting the collection, Susie said there were 6 marbles. After Paul counted the collection, he said there were 7 marbles. Can they both be correct? Explain your...

K – CC – RT3

Two students were asked to count all the stamps in a collection. After counting the collection, Monica said there were 7 stamps. After Jana counted the collection, she said there were 8 stamps. Can they both be correct? Explain your...

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