"Reduction" PPT courseware download on the meaning of fractions

Description

"Reduction" PPT courseware download on the meaning of fractions

Part One: Exploring New Knowledge

Observe carefully, what did you find?

Can you describe in your own words what approximation is?

Like this, dividing the numerator and denominator of a fraction by a common factor at the same time will keep the value of the fraction unchanged. This process is called reduction. 1/3 cannot be divided any further and is the simplest fraction.

A fraction whose numerator and denominator have only one common factor is called the simplest fraction.

No, it is already the simplest fraction.

Take a look and tell me how you can divide it.

Reduction method:

Generally, the numerator and denominator of a fraction are divided by their common divisor (except 1); usually the division is done until the simplest fraction is obtained.

When dividing, if you can quickly see the greatest common divisor of the numerator and denominator, it is easier to divide them directly by their greatest common divisor.

About the PPT, the second part of the content: consolidation practice

Divide 12/18 into its simplest fraction and share it with everyone.

First divide 12 and 18 by the common factor 2,

Then divide by the common factor 3 of 6 and 9 respectively.

You can also divide directly by the greatest common factor 6 of 12 and 18.

About the PPT, the third part of the content: class summary

Today, we learned about reduction by using fractions to represent four figures in the book. Do you understand the meaning of reduction and master the method of reduction? Boldly tell everyone what you have learned.

Keywords: Beijing Normal University edition fifth grade mathematics volume PPT courseware free download, approximation PPT download, meaning of fractions PPT download, .PPT format;

For more information about the "Reduction of the Meaning of Fractions" PPT courseware, please click on the "Reduction of the Meaning of Fractions" PPT tab.

"Reduction" PPT teaching courseware on the meaning of fractions:

"Reduction" PPT teaching courseware on the significance of fractions Part 1: Learning objectives 1. Combined with intuitive diagrams, experience the process of knowledge formation and understand the meaning of reduction. 2. Explore and master reduction methods and be able to perform reductions correctly. Key points: Understand the meaning and method of reduction...

"Reduction" PPT download of the meaning of fractions:

"Reduction" The Meaning of Fractions PPT Download Part One: Exciting Introduction Question: What are the common factors of the numerator and denominator of the following fractions? What is the greatest common factor? How did you find it? Chat with your deskmates. ... ... ... Approximate PPT, in the second part...

"Reduction" The meaning of fractions PPT:

"Reduction" The meaning of fractions PPT Part 1: Class introduction 1. Experience the process of knowledge formation and understand the meaning of reduction. 2. Explore and master reduction methods and be able to perform reductions correctly. 3. Explore the intrinsic connections between knowledge and develop good study habits..

File Info

Update Time: 2024-10-05

This template belongs to Mathematics courseware Beijing Normal University Edition Fifth Grade Mathematics Volume 1 industry PPT template

Preview