COT Q1. LCM.pptx
- 1. COMMON MULTIPLES AND LCM OF TWO – FOUR NUMBERS -M5NS-Id-69.2- LUISA F. GARCILLAN Teacher 3- Math Teacher Lapogan Integrated School CLASSROOM OBSERVATION 1- MATHEMATICS 5
- 2. QUARTER 1 Lesson 12 : A. Identify the multiples of a given number B. Find the common multiples and LCM of two - four numbers using continuous division C. Write the LCM of the given numbers using the continuous division
- 3. Drill Game – Skip Counting Mechanics: •Divide the pupils by two. •Use the show me boards •Flash the numbers on screen one at a time and say, “Give the next three numbers in the sequence.”
- 4. 0, 3, 6, 9, ___, ____, ___
- 5. 0, 3, 6, 9, 12, 15, 18
- 6. 0, 4, 8, 12,__, __, __
- 7. 0, 4, 8, 12,16, 20, 24
- 8. 0, 8, 16, 24,__, __, __
- 9. 0, 8, 16, 24,32, 40, 48
- 10. 0, 10, 20, 30,__, __, __
- 11. 0, 10, 20, 30,40, 50, 60
- 12. 0, 6, 12, 18,__, __, __
- 13. 0, 6, 12, 18, 24, 30, 36
- 14. 0, 7, 14, 21,__, __, __
- 15. 0, 7, 14, 21, 28, 35, 42
- 16. Review how to use the listing method to get the LCM of the given number. • List some multiplies of two given numbers. • Write the common multiplies. • The smallest common multiple is the LCM 3 6 9 12 15 21 24 27 4 8 12 16 20 24 28 32
- 17. Divide the class into 5 groups. Let each group get the strip of cartolina and complete the given chart. Get the LCM using Listing method. Numbers LCM 1. 6, 10 2. 5, 7 3. 9, 12 4. 8, 40 5. 7, 28
- 21. Ask: What are the objects that can be recycled? What do you do in the used objects like plastic bottles, used papers, glass bottles etc.. What are the good effects of recycling in our environment?
- 22. Present this problem to the class. -Bong Bong and Sarah collected used plastic bottles for recycling. They arranged the bottles in boxes of 8 and 12. What is the least number of bottles they gathered in all?
- 23. There are three ways of getting the LCM the: 1.Listing Method 2.Prime Factorization/Factor Tree 3.ContinuousDivision/Ladder Method
- 27. •What is the LCM of 8 and 12? •Which method you think is easier method? •How did you get the LCM of 8 and 12 using the Continuous Division Method?
- 28. •By getting the product of all the prime divisor and the last set of quotients we get the Least Common Multiples (LCM).
- 29. Group Activity
- 30. Find the least common multiples of the following pairs of numbers. Group 1 4, 6, and 8 -LISTING METHOD Group 2 6 , 9 and 18 -PRIME FACTORIZATION Group 3 3, 8 and 15 -CONTINUOUS DIVISION
- 31. •What is Least Common Multiple (LCM) of two given number? •How do we find the Least Common Multiple (LCM) of two given numbers using continuous division?
- 32. Least Common Multiple (LCM) is the smallest non-zero number that is a multiple of all the numbers in the set. Continuous division in finding the LCM is done following the steps below: Write the number horizontally and find a prime number that will divide the numbers, if possible. Divide by that prime number and write the quotients below the dividends. Copy any numbers not divided below the dividend. Continue the process until no two numbers have a common prime divisor. Multiply all the prime divisors and the last set of quotients to get the LCM.
- 33. Assessment Find the Least Common Multiple (LCM) of the given pairs of numbers using any of the three method. 1. 12 and 18 2. 11 and 99 3. 5, 10 and 30 4. 4, 5 and 16 5. 9, 54, and 90
- 34. Enrichment Activities: Find the Least Common Multiple (LCM) of the given pairs of numbers using the three method. 1. 3 , 4, and 6 2. 2, 3, and 5 3. 4, 6, and 12 4. 3, 6, and 15
- 35. Thank you LUISA F. GARCILLAN Teacher 3- Math Teacher Lapogan Integrated School