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Multiplication Comparisons

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Multiplication Comparisons

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What you will learn from this videoWhat you will learn

We'll learn how to interpret multiplication equations as comparisons.
That we can use multiplicative comparisons to solve real world problems.
And we'll discover that this knowledge can help us count our prizes, clean up a mess, and make delicious ice cream!

Discussion Questions
- Before Video
  How can you use repeated addition to find 6 groups of 7?ANSWER
  - 7 + 7 + 7 + 7 + 7 + 7.
  What can we use instead of using repeated addition if we have 6 groups of 7?ANSWER
  - Multiplication.
  What multiplication sentence would you use to show 6 groups of 7?ANSWER
  - 6 × 7 = 42.
  How would you read the expression: 8 × 4?ANSWER
  - 8 times 4.
  Adele has 8 goats. Jerry has 5 more goats than Adele. How many goats does Jerry have?ANSWER
  - 8 + 5 = 13. Jerry has 13 goats.
- After Video
  Travis is 9 years old. His uncle is 5 times as old as Travis. Find Travis's uncle's age using multiplication. ANSWER
  - 9 × 5 = 45 years old.
  If you see that something is X times more than something else, what operation would you use to find the answer?ANSWER
  - Multiply.
  A recipe calls for 4 cups of flour for one batch of cookies. You want to make 6 times more than one batch. How many cups of flour do you need?ANSWER
  - 24 cups of flour.
  Janice has 12 fish in her pond. Her friend Keisha has 4 times as many fish in her pond. How many fish are in Keisha’s pond? Show your work.ANSWER
  - 12 x 4 = 48 fish.
  There are 7 cat toys in the display at the front of the store. There are 3 times as many cat toys in the back of the store. How many cat toys are in the back of the store?ANSWER
  - 7 x 3 = 21 cat toys.
Vocabulary
- Multiplication DEFINE
- Factor DEFINE
- Product DEFINE
- Compare DEFINE
- Multiplicative comparison DEFINE
- Additive comparison DEFINE
- Array DEFINE
- Bar model DEFINE

Reading Material
Practice Word Problems
Practice Number Problems
Lesson Plan
Teacher Guide
Assessment
Online Quiz Game Quiz PDF Exit Ticket