| Category | Format | Size |
|---|---|---|
| Qingdao Edition Fifth Grade Mathematics Volume 2 | pptx | 6 MB |
Qingdao Edition Fifth Grade Mathematics Volume 2
Description
"Campus Art Festival" PPT courseware 7
create situations
Ask a question
In the campus art festival, the students made a lot of stickers. Can you find any useful mathematical information?
The 4 pasted paintings used 1 meter of yarn.
4 stickers used 3 discs
My question based on the information
Question 1: 1 meter of wool is used to paste 4 paintings. How many meters of wool are used in each painting on average?
Question 2: 3 discs are used for 4 pasted paintings. How many discs are used for each painting on average?
The dividend is the numerator of the fraction, and the divisor is the denominator of the fraction.
dividend ÷ divisor = dividend / divisor
If the letter a is used to represent the dividend, b represents the divisor.
Use letters to express the relationship between fractions and division: a÷b=a/b(b≠ 0)
Fill it out:
The numerator is equivalent to ( ) in division,
The denominator is equivalent to ( ) in division,
The fraction line is equivalent to ( ) in division.
judge right or not:
1. Cut the 3-meter-long wire into 8 sections on average, each section is 1/8 meter long.
2. 7÷5=5/7
3. Divide a 4 square meter round flower bed into equal sized ones.
5 pieces, each piece is 4/5 square meters.
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"Campus Art Festival" PPT courseware 9:
"Campus Art Festival" PPT courseware 9 Basic properties of fractions: If the numerator and denominator of a fraction are multiplied or divided by the same number (except zero) at the same time, the size of the fraction remains unchanged. Question: When multiplying the numerator of 2/3 by 4, how should the denominator change so that the size of the fraction remains unchanged?
"Campus Art Festival" PPT courseware 8:
"Campus Art Festival" PPT courseware 8 A preliminary exploration of new knowledge Question: 6 apples are divided equally among 3 children. How many apples does each child get? I use division: 63=2 I use fractions: 6/3 We use the relationship between fractions and division to get the relationship between fractions and division..
"Campus Art Festival" PPT courseware 6:
"Campus Art Festival" PPT courseware 6 Review the past and learn new things Reveal the topic In the last class, we learned the meaning of fractions. Can you tell the meaning of 3/4? The meaning of 3/4 is to divide unit 1 into 4 equal parts. We take three of them to account for 3/4 of the whole. In this lesson we will...
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Update Time: 2024-06-27
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