Lesson 6 Concept Development
Word Problem: 20 children play a game. There are 5 children on each team. How many teams play the game? Write a division sentence to represent the problem.
Problem 1: Relate division to an array model.
Problem 2: Use an array to relate the unknown factor in multiplication to the quotient in division.
Problem 3: Relate multiplication and division.
Word Problem: I have 12 books. I put 4 books in each shelf. How many shelves will I need?
Mr. Hannigan needs _______ boxes. ______ × 4 = 12
12 ÷ 4 = ______
4. Judy washes 24 dishes. She then dries and stacks the dishes equally into 4 piles. How many dishes are in each pile?
24 ÷ 4 = _______
4 × ________ = 24
What is the meaning of the unknown factor and quotient?
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