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Tuesday, October 11 th

Tuesday, October 11 th. Warm Up. Please write down Homework and complete Warm UP. Start with 1 and add 3 to 4 times the numbers. What will the 3 rd number in the sequence be? Simplify 3  + 10 - 24 ÷ 4 +9. Corny Joke of the Day.

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Tuesday, October 11 th

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  1. Tuesday, October 11th Warm Up Please write down Homework and complete Warm UP Start with 1 and add 3 to 4 times the numbers. What will the 3rd number in the sequence be? Simplify 3 + 10 - 24 ÷ 4 +9

  2. Corny Joke of the Day What did one mountain say to the other after the earthquake? “It isn’t my fault”

  3. Schedule for the Week Today: Review Data Test Answers, Prime vs. Composite and divisibility Wednesday: Prime Factorization Thursday: Prime Factorization Friday: Review and Quiz. WEEKLY REVIEW DUE

  4. Data test answers Great job everyone! Congrats to our Test Toppers

  5. Clean out Binders I NEED YOU TO PLEASE LISTEN CAREFULLY

  6. Keep in your Binders • Warm Ups • Goal Sheet • Syllabus • Weekly Reviews • Tabs • Unused paper

  7. Throw away or take home EVERYTHING ELSE

  8. Syllabus for Qtr. 2 Please take home and get it signed by your parents

  9. Unit #1 Number Sense Divisibility, Prime Factorization, GCF, and LCM

  10. Question of the Day 1,407 or 2,303 Are the numbers PRIME or COMPOSITE and why

  11. Task #1 Prime vs. Composite

  12. Snap Cube Discovery • At your tables you will find snap cubes, please be respectful of these fun math manipulatives! • Review: ARRAY=rectangle • Each person will complete the table on the back • Let’s do it together!

  13. Discussion #1 For which numbers can you make only one array? • These are ourprime • For instance, 3 is prime since only one array can be made #2 For which numbers can you make more than 1 array? • These are our composite • For instance, 4 is composite • Since more than one array can be made.

  14. What about 1 and 2?? • 1 is it prime or composite? • 2 is it prime or composite? NOTHING Prime

  15. Prime A Prime number is a number that has exactly 2 factors-1 and itself *2 is prime

  16. Composite • A Composite Number is a number that has more than 2 factors. • The number 1 is neither prime nor composite

  17. Question of the Day 1,407 or 2,303 Are the numbers PRIME or COMPOSITE and why

  18. You need to use….. DIVISIBILITY

  19. Vocab word #1 DIVISIBILITY a number is divisible by another if you can divide it and the quotient is a whole number

  20. Rules of Divisibility

  21. You try! Tell whether 462 is divisible by 2, 3, 4, and 5 The last digit, 2, is even. Divisible The sum of the digits is 4 + 6 + 2 = 12. 12 is divisible by 3. Divisible Not divisible The last two digits form the number 62. 62 is not divisible by 4. Not divisible The last digit is 2. So 462 is divisible by 2 and 3.

  22. You try! Tell whether 540 is divisible by 6, 9, and 10 The number is divisible by both 2 and 3. Divisible The sum of the digits is 5 + 4 + 0 = 9. 9 is divisible by 9. Divisible The last digit is 0. Divisible So 540 is divisible by 6, 9, and 10

  23. Finding the Missing Digit • Create a number that is divisible by 2 AND 5 32,07__ • Create a number that is divisible by 4 and 6 26,95____ • Create a number that is divisible by 8 and 9 123,98______ Work on this with your groups. When you think you have the answers raise your hand & then help others around you 

  24. Question of the Day 1,407 or 2,303 Are the numbers PRIME or COMPOSITE and why

  25. Can you answer this now? 1,407 or 2,303 Which one is prime? How do you know?

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