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Unit 5 - Lesson 1 - Grade 8: Illustrative Mathematics

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6 Questions
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Grade 8 Unit 5
Lesson 1: Inputs and Outputs
CC BY 2021 Illustrative Mathematics®
Grade 8 Unit 5
Lesson 1: Inputs and Outputs
CC BY 2021 Illustrative Mathematics®
Lesson: Inputs and Outputs

Dividing by 0 (Warm Up)

Study the statements carefully.
  • 12 ÷ 3 = 4 because 12 = 3 · 4
  • 6 ÷ 0 = x because 6 = x · 0
1.

What value can be used in place of x to create true statements? Explain your reasoning.

Guess My Rule

Keep the rule cards face down. Decide who will go first.

1. Player 1 picks up a card and silently reads the rule without showing it to Player 2.

2. Player 2 chooses an integer and asks Player 1 for the result of applying the rule to that number.

3. Player 1 gives the result, without saying how they got it.

4. Keep going until Player 2 correctly guesses the rule.

After each round, the players switch roles.

Making Tables

For each input-output rule, fill in the table with the outputs that go with a given input. Add two more input-output pairs to the table.
2.

3.

4.

5.

Cool Down: What's the Rule?

What's the Rule?

6.

Fill in the table for this input-output rule: