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  5. 2: Counting From One on Materials - Multiplication and Division

2: Counting From One on Materials - Multiplication and Division

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Marcie has four bags of lollies. There are three lollies in each bag. How many lollies does she have altogether?

Student: Can I use counters?
Teacher: If that will help you, here are some counters.
Student: 1, 2, 3... 1, 2, 3... 1, 2, 3... 1, 2, 3 [making four piles of three counters]. 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 [counting all the counters].
Teacher: How many altogether?
Student: Twelve.

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Students at the Counting From One on Materials stage rely on counting physical materials, like their fingers. They count all the objects in both sets to find an answer to a joining or separating of sets problem.