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Review Numerator Fraction line Denominator

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1 Review Numerator Fraction line Denominator
1、 Know the fraction and some vocabulary about it. Numerator Fraction line Denominator 2、Know how to write fractions: 1st Fraction line 2nd Denominator 3rd Numerator

2 Ukraine Poland Russia Germany Mauritius Panama

3 Fold

4 返回

5 返回

6 返回

7 Show with resources

8 numerators Not Unit Fractions with different
PowerPoint Templates Happy birthday Photo Jerry’s birthday with different numerators

9 A 1 decimeters long tape,we divide into 5 equal parts.
Do it 1: A 1 decimeters long tape,we divide into 5 equal parts. You should make the tape coloured to make a new fraction. one decimeter First I divide the tape into ( ) equal parts, Then I take ( ) parts,it is ( ) of 1 decimeters,it is ( ) decimeter

10 I divide the tape into ( 5 ) equal parts...
1 5 dm 1 5 dm 1 5 dm 1 5 dm 2 5 dm 1 5 dm 1 5 dm 1 5 dm 3 5 dm 1 5 dm 1 5 dm 1 5 dm 1 5 dm 4 5 dm 1 5 dm 1 5 dm 1 5 dm 1 5 dm 1 5 dm 5 dm

11 use your mind 1 5 2 5 3 5 4 5 5 1dm

12 what is the difference between them
1 5 One decimeter is( )decimeter. 1 5 2 5 1 5 Two decimeters are( ) decimeters. 1 5 Three decimeters are( )decimeters. 3 5 1 5 Four decimeters are( )decimeters. 4 5 1 5 Five decumeters are( )decimeters. 5 5 dm 1dm what is the difference between them

13 What is not unit fraction? It has several unit fraction with same
Conclusion 1 What is not unit fraction? It has several unit fraction with same denominator.It is compose of several unit fracitons

14 Do it 2 Suger-coated haws on a stick 1 7 2 7 3 7 4 7 5 7 6 7 7 7 = 1

15 There are 12 sweets in the box
1)Create a new fraction equal to 1 with painting. 2)Discuss the meaning of your fraction in group. 3) Sum up what did you found.

16 What kind of fraction is equal to 1?
when it's numerator and donominator are same ,the farction is equal to 1. Because the average into several parts of a whole,Took all the parts, is taking a whole.

17 Exercis1 Fill in the blanks 3 parts,of them ,they are ( )of the whole
1、We divide a circle into 4 same parts,We take 3 parts,of them ,they are ( )of the whole circle。 3 4 1 4 = 3 ( ) 1 5 ( ) 2 = 2、 3 2 1 10 5 6 ( ) ( ) = 1 6 9 10 ( ) ( ) 5 = 9 one two three four five

18 Exercise 2 Fill in the blanks
1、There are 8 same pieces of chocolate in the box,Tom eat 5 of them,so Tom eat ( )box of chocolate 5 8 box 2、The cake is divide into three same parts, 2 of them are( ) 2 3 cake 3、One box of sweets is divide into 7 same parts, four of them are( )。 4 7 box one two three four five

19 Exercise 3 True or flase 1 4 1 5 1 4 × × one two three four five

20 Exercise 4 coloured the figure 5 8 4 7 3 4 one two three four five

21 Exercise 5 Use your mind 1、Use a right fraction to represent the yellow? 5 9 2、The number of A is B five times. B number is a number of ( )A A number is 6 times the number of b. B is ( )of the two number's sum。 1 5 1 7 one two three four five

22 what did you learn in this lesson

23 Review 1、 Equal parts. same size same amount


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