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People's Education Press First Grade Mathematics Volume 2
Category | Format | Size |
---|---|---|
People's Education Press fifth grade mathematics volume 2 | pptx | 6 MB |
Description
"Factors and Multiples" PPT Courseware 2
1. Review introduction and reveal topics
Calculate each of the following questions.
12÷2= 9÷5= 30÷6=
2÷3= 2÷3= 19÷7≈
20÷10= 21÷21= 63÷9=
2. Explore new knowledge
We are divided into two categories. In the first category, the quotients of all calculations are integers, and in the second category, the quotients of all calculations are decimals.
In integer division, if the quotient is an integer with no remainder, we say that the dividend is a multiple of the divisor and the quotient, which are factors of the dividend. For example, 12÷2=6, 12 is a multiple of 2 and 6, and 2 and 6 are factors of 12.
21÷21=1, 21 is a multiple of 21 and 1, and 21 and 1 are factors of 21.
20÷10=2, 20 is a multiple of 10 and 2, and 10 and 2 are factors of 20.
3. Application of knowledge
Among the four groups below, who is the factor of whom? Who is a multiple of whom?
24÷4=6, the quotient is an integer with no remainder, so 4 is a factor of 24, and 24 is a multiple of 4.
26÷13=2, the quotient is an integer with no remainder, so 13 is a factor of 26, and 26 is a multiple of 13.
75÷25=3, the quotient is an integer with no remainder, so 25 is a factor of 75, and 75 is a multiple of 25.
81÷9=9, the quotient is an integer with no remainder, so 9 is a factor of 81 and 81 is a multiple of 9.
4. Assign homework
Homework: Exercise 2 on page 8, Question 1.
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"Factors and Multiples" Multiples and Factors PPT courseware:
"Factors and Multiples" Multiples and Factors PPT Courseware Calculate the following formulas: 2 4 7 8 25 6 6 8 12 3 24 7 47 7 34 4 17 12 2 and 6 are factors of 12. 12 is a multiple of 2 and also a multiple of 6. Can you name other factors of 12? 34..
"Factors and Multiples" Flash animation courseware:
"Factors and Multiples" Flash Animation Courseware This courseware helps students learn the knowledge points of factors and multiples through exercises, and summarizes the knowledge points of this lesson. It is a good courseware for consolidating knowledge points and reviewing the course. Keywords: Factors and multiples animation..
"Prime Numbers and Composite Numbers" Factors and Multiples PPT Courseware 4:
"Prime Numbers and Composite Numbers" Factors and Multiples PPT Courseware 4 Teaching Objectives To enable students to understand the concepts of prime numbers and composite numbers, and to be able to judge whether a number is a prime number or a composite number. Cultivate students' ability to observe, compare and generalize. Cultivate students' learning qualities of serious study and good thinking..
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Update Time: 2024-10-19
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