Lesson Plan : Common Multiples and Common Factor

Teacher Name:
 Bridget and Blake
 Grade 6

 Common Multiples and Common Factors
 The explanation of Multiples and Factors. How to find the least common multiple and the greatest common Factor.
 To explain the differences between a Multiple and a Factor. Demonstrate how to find the common multiples and factors of a group of numbers. Then showing how to find the least common multiple and the greatest common factor for a pair of numbers. ex. 4- 1,2,4, 8- 1,2,4,8 the common factors are 1,2,and 4 the greatest common factor is 4 ex. 4- 4,8,12,16,20..... 8- 8,16,24,32..... the common Multiples are 8,16.... the least common Multiple is 8
 A handout showing the definitions of Multiples, Factors, the least common Multiple, and the greatest common Factor.
 What are Factors? What are Multiples? How do you find the Greatest common Factor? How do you find the Least common Multiple?
 A factor of a given number is every number that divides exactly into the number. ex. factors of 10 10= 1,2,5,10 1 and itself is always factors of any number. When two or more numbers have the same factor, that factor is called a common factor. ex. 12= 1,2,3,4,6,12 18= 1,2,3,6,18 the common factors would be 1,2,3, and 6 the greatest factor is 6 when you multiply a given whole number by any other whole number, the result is a multiple of that number. ex. 3 multiples of 8= 8,16, and 24 common multiples of two numbers are multiples of both numbers. ex. 3= 3,6,9,12,15,18,21,24,27,30,33..... 5= 5,10,15,20,25,30...... the least common multiple is 30.
 Activity with dominoes, asking to show the common multiples and factors. Then asking to show the least common multiple and the greatest common factor.
Checking For Understanding:
 Wanting to see the understanding of multiples and factors. Then making sure they know which one to look for on the multiples and the factors.
 This is a brief run thru chapter 3 Common Multiples and Common Factors, form the Primtime book. Maybe with this the students now understand the differences between Multiples and Factors and can complete their homework without any problem.
Teacher Reflections:

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