"Understanding of Reciprocals" Fraction Division PPT Courseware 5

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"Understanding of Reciprocals" Fraction Division PPT Courseware 5

Tutorial outline

1. Calculate first, and then observe what the common features of the formulas are?

2. What is mutual reciprocity? How do you understand the word "mutuality"? Is 3/8 the reciprocal number? Why?

3. Are two numbers whose result is 1 reciprocal to each other?

4. Use your own words to find a way to count backwards.

5. Discuss the reciprocals of “1” and “0”.

1.What is mutual reciprocity?

Two numbers whose product is 1 are reciprocals of each other.

2.How to find the reciprocal of a number?

To find the reciprocal of a number, you can swap the numerator and denominator of the number.

I can do it

1. Fill it out

(1) The two numbers in ( ) are reciprocals of each other.

(2) 7×( )= ×( )=( )×0.25= +( ) =1

(3) To find the reciprocal of a number (except 0), just swap the positions of ( ) of the number.

2. Judgment (mark √ if correct, × if incorrect)

(1) The product of 7/12 and 12/7 is 1, so 7/12 and 12/7 are reciprocals of each other. ( )

(2) 1/2×4/3×3/2=1, so 1/2, 4/3, and 3/2 are reciprocals of each other. ( )

(3) The reciprocal of 1 is 1, and the reciprocal of 0 is 0. ( )

(4) The reciprocal of a number must be smaller than this number. ( )

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"Understanding of Reciprocals" Fraction Division PPT Courseware 7:

"Understanding of Reciprocals" Fraction Division PPT Courseware 7 Learning Objectives Understand the meaning of reciprocals through group cooperative learning. Master the method of finding the reciprocal of a number and be able to correctly find the reciprocal of a number. Learning style Group cooperation and communication Learning style Evaluation method Small...

"Understanding of Reciprocals" Fraction Division PPT Courseware 6:

"Understanding of Reciprocals" Fraction Division PPT Courseware 6 Do you want to know the secrets of reciprocals? 1. What is countdown? 2. How to find the reciprocal of a number? Quick Answer Two numbers sum and 1 are reciprocals of each other. ( ) Two numbers whose difference is 1 are reciprocals of each other. ( ) The quotient is 1..

"Understanding of Reciprocals" Fraction Division PPT Courseware 4:

"Understanding of Reciprocals" Fraction Multiplication PPT Courseware 4 Cooperation and Communication Observe the calculation formulas and results. What did you find? 1. The numerator and denominator have exchanged positions; 2. The products are both 1; 3. They are two numbers multiplied together. Two numbers whose product is 1 are reciprocals of each other. ... ... ... ... ..

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Update Time: 2024-10-04

This template belongs to Mathematics courseware Jiangsu Education Edition Sixth Grade Mathematics Volume 1 industry PPT template

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