2: Counting From One on Materials - Addition and Subtraction

 

Tane has 5 biscuits. He gives 2 to his little brother. How many does he have left?

Student: One, two, three, four, five [puts up five fingers one at a time]. One, two [takes two down]. One, two, three, he has three left.

Click here for video

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.