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Topic 7-7 Make and Test Conjectures

Topic 7-7 Make and Test Conjectures. I can make and test conjectures. It always rains when it is cloudy outside. . Lesson Video. Pearson Success Net. Vocabulary . Conjecture A generalization that you think is true All even numbers are divisible by 2.

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Topic 7-7 Make and Test Conjectures

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  1. Topic 7-7 Make and Test Conjectures I can make and test conjectures It always rains when it is cloudy outside.

  2. Lesson Video • Pearson Success Net

  3. Vocabulary • Conjecture • A generalization that you think is true • All even numbers are divisible by 2. • I think this is true because 8, 10, and 12 can all be divided by 2. • The commutative property of multiplication is NOT a conjecture because it is a basic property of numbers.

  4. Quick Write • How old are you? Is it reasonable to say that all sixth graders are 8? Why or why not?

  5. Make a generalization about multiples of 10 • Use questions to help you write a conjecture • What are some multiples of 10? • 10, 20, 30, 40, 50 • What do you notice? Do they have anything in common? • They all end in 0. They are all even. • Using this data you could make a conjecture….

  6. Conjecture All multiples of 10 end in 0 or All multiples of 10 are even

  7. Test your conjecture • Find other multiples of 10 to see if you are correct. • Are other multiples of 10 even? Do other multiples of 10 end in 0? • If your answer is yes, then your conjecture is reasonable.

  8. Test these conjectures… • The difference of two odd numbers is always even. • Use examples to decide if it is correct or not • The product of two prime numbers is never an even number. • Use examples to decide if it is correct or not

  9. Make and test a conjecture about odd numbers. • A) Write down 2-3 questions you have about odd numbers • B) Pick one of the questions that you think you know the answer to • AB) Find examples that work for your conjecture

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