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
Qingdao Edition Seventh Grade Mathematics Volume 2
Jiangsu Education Edition Fourth Grade Mathematics Volume 1
Qingdao Edition Second Grade Mathematics Volume 2
People's Education Press First Grade Mathematics Volume 2
!["Basic Properties of Fractions" Fraction PPT Courseware 2](http://daogebangong.oss-cn-beijing.aliyuncs.com/ppt/preview/1/4b39e7fc-1373-4215-a845-35e09b303498.webp)
Category | Format | Size |
---|---|---|
Western Normal University Edition Fifth Grade Mathematics Volume 2 | pptx | 6 MB |
Description
"Basic Properties of Fractions" Fraction PPT Courseware 2
teaching objectives
1. Understand and master the basic properties of fractions, and be able to use the basic properties of fractions to solve some simple problems.
2. Correctly recognize and understand the dialectical relationship between change and immutability.
3. Cultivate students’ observation and abstract thinking abilities.
Are 1.1/2 equal to 2/4? Can you analyze it using the above rules?
2. Can you use origami to prove that 1/2 and 2/4 are equal?
3. Can you still find fractions equal to 1/2 and 2/4? How many more can be folded?
If the numerator and denominator of a fraction are multiplied or divided by the same number (except 0) at the same time, the size of the fraction remains unchanged. This is called the fundamental property of fractions.
Give it a try:
1. Judgment. (Gesture and explain why.)
(1) If the numerator and denominator of a fraction are multiplied or divided by the same number, the size of the fraction remains unchanged. ( )
(2) Reduce the numerator of 15/20 by 5 times and the denominator by 5 times. The size of the fraction remains unchanged. ( )
(3) If the numerator of 3/4 is multiplied by 3 and the denominator is divided by 3, the size of the fraction remains unchanged. ( )
Class summary
Recall, what did we learn in this lesson? What are the basic properties of fractions? How do you understand it?
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For more information about the "Basic Properties of Fractions Fractions" PPT courseware, please click the "Basic Properties of Fractions ppt Fractions ppt" tag.
"Basic Properties of Fractions" PPT:
"Basic Properties of Fractions" PPT Part One Content: Discuss and Oral Calculation 244=279=24040=27090=36040=7200900=364=729=Discuss How can the numerator and denominator of a fraction change and the size of the fraction remain unchanged? Scores of points..
"Basic Properties of Fractions" Fraction PPT courseware:
"Basic Properties of Fractions" Fraction PPT courseware grouping: Fold the four prepared pieces of paper of the same size into 1/2, 2/4, 3/6, 4/8, and then use shading to represent these fractions. Discuss: These What happens to the numerator and denominator of a fraction? What about the size of the fraction? Cent...
"Basic Properties of Fractions" The meaning and properties of fractions PPT courseware 4:
"Basic Properties of Fractions" PPT Courseware 2 Learning Objectives 1. Understand and master the basic properties of fractions, and know the relationship between the basic properties of fractions and the invariant properties of quotients in integer division. 2. Be able to use the basic properties of fractions to convert a fraction into a fraction with the same denominator and unchanged magnitude..
File Info
Update Time: 2024-09-11
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