Western Normal University Edition First Grade Mathematics Volume 1
People's Education Press First Grade Mathematics Volume 1
Beijing Normal University Edition Seventh Grade Mathematics Volume 1
People's Education Press Third Grade Mathematics Volume 1
People's Education Press Second Grade Mathematics Volume 1
Beijing Normal University Edition Fifth Grade Mathematics Volume 1
Hebei Education Edition Third Grade Mathematics Volume 1
Hebei Education Edition Seventh Grade Mathematics Volume 2
Beijing Normal University Edition Seventh Grade Mathematics Volume 2
Qingdao Edition Seventh Grade Mathematics Volume 1
People's Education High School Mathematics Edition B Compulsory Course 2
Beijing Normal University Edition Eighth Grade Mathematics Volume 1
Jiangsu Education Edition Fourth Grade Mathematics Volume 1
Qingdao Edition Seventh Grade Mathematics Volume 2
Qingdao Edition Second Grade Mathematics Volume 2
People's Education Press First Grade Mathematics Volume 2
!["Harvest Season" PPT Courseware 11](http://daogebangong.oss-cn-beijing.aliyuncs.com/ppt/preview/1/177f18f3-52cf-4180-96a2-bae2cb6d1028.webp)
Category | Format | Size |
---|---|---|
Qingdao Edition Fourth Grade Mathematics Volume 1 | pptx | 6 MB |
Description
"Harvest Season" PPT Courseware 11
New Year's Day is coming soon, and the art team has to decorate the classroom with 12 square paintings of the same size. If you want to stick a rectangle, how many ways are there?
Group work:
Use the 12 small squares in the school bag to represent the 12 pictures and put them around.
Require:
(1) Take a look at several completely different rectangles that can be arranged;
(2) Think about how to express your pendulum method using multiplication equations.
4×3=12, 4 is a factor of 12, and 3 is also a factor of 12;
12 is a multiple of 3, and 12 is also a multiple of 4.
2×6=12, 2 is a factor of 12, and 6 is also a factor of 12;
12 is a multiple of 2, and 12 is also a multiple of 6.
1×12=12, 1 is a factor of 12, and 12 is also a factor of 12;
12 is a multiple of 1, and 12 is a multiple of 12.
What are the factors of 12?
Factors of 12: 1, 2, 3, 4, 6, 12.
Like this, the method of listing all possibilities one by one in a certain order and finally finding all the answers is called enumeration method in mathematics.
practise:
(1) According to the following calculation formula, talk about which number is a multiple of which number and which number is the factor of which number.
9 × 8=72 45 ÷ 3=15
(2) 8 is a multiple and 4 is a factor. ( )
Factors and multiples cannot exist alone.
Did you discover it?
Factors of 12: 1, 2, 3, 4, 6, 12.
Factors of 24: 1,2,3,4,6,8,12,24.
Factors of 16: 1,2,4,8,16.
The number of factors of a number is limited, the smallest factor is 1, and the largest factor is itself.
What are the multiples of 3?
Multiples of 3: 3, 6, 9, 12…
Multiples of 4: 4, 8, 12, 16…
Multiples of 5: 5, 10, 15, 20…
The number of multiples of a number is infinite, the smallest is itself, there is no largest multiple.
game
See who reacts faster
Rules of the game: If your student number meets the following requirements, please stand up and see who has the fastest response.
(1) Whose student number is a factor of 9?
(2) Whose student number is a multiple of 9?
(3) Whose student number is a multiple of 1?
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For more information about the "Harvest Season" PPT courseware, please click the "Harvest Season" ppt tag.
"Harvest Season" PPT courseware 10:
"Harvest Season" PPT Courseware 10 Teaching Objectives In this lesson, we mainly study the nature of the invariant quotient. Students must understand and master the law of the invariant quotient based on the actual example of monkeys dividing peaches, and be able to skillfully apply the invariant quotient. Solve practical problems regularly. Monkey King ..
"Harvest Season" PPT courseware 9:
"Harvest Season" PPT Courseware 9 Teaching Objectives 1. Understand the concepts of factors and multiples, and be able to find the factors and multiples of a number; 2. Know the characteristics of the factors and multiples of this number, and be able to solve related practical problems . 3. Cultivate students’ willingness to cooperate..
"Harvest Season" PPT courseware 8:
"Harvest Season" PPT Courseware 8 A: I bought 4 notebooks for 12 yuan. B: I bought 2 notebooks for 6 yuan. C: I bought 3 notebooks for 9 yuan. Ding: I bought 6 notebooks for 18 yuan. Can you calculate the pens they bought separately...
File Info
Update Time: 2024-09-07
This template belongs to Mathematics courseware Qingdao Edition Fourth Grade Mathematics Volume 1 industry PPT template
"Harvest Season" PPT Courseware 11 Simple campus recruitment activity planning plan summary enterprise and institution recruitment publicity lecture PPT template is a general PPT template for business post competition provided by the manuscript PPT, simple campus recruitment activity planning plan summary enterprise and institution recruitment promotion Lecture PPT template, you can edit and modify the text and pictures in the source file by downloading the source file. If you want more exquisite business PPT templates, you can come to grid resource. Doug resource PPT, massive PPT template slide material download, we only make high-quality PPT templates!
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