2: Counting From One on Materials - Addition and Subtraction

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Juanita has 8 coloured pencils. She gets 5 more coloured pencils. How many does she have now?

Student: One, two, three, four, five, six, seven, eight... one, two, three, four, five [counting counters].
Teacher: So how many does she have now?
Student: One, two, three, four, five, six, seven, eight, nine, ten, eleven, twelve, thirteen [counting all of the counters].

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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.