"Basic Properties of Fractions" PPT Courseware 2

Description

"Basic Properties of Fractions" PPT Courseware 2

learning target

1. Understand and master the basic properties of fractions, and know the relationship between the basic properties of fractions and the invariant property 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.

1. Teachers tell stories.

The monkeys on Monkey Mountain like to eat the cakes made by the Monkey King the most. One day, the Monkey King made three pieces of cake of the same size and distributed them to the little monkeys. He first cut the first piece of cake into four pieces on average and gave one piece to Monkey 1. Monkey 2 saw it and said, "It's too small. I want two pieces." The Monkey King cut the second piece of cake into eight pieces on average and gave two pieces to Monkey 2. Monkey 3 was even more greedy. He rushed to say: "I want three pieces, I want three pieces." So the Monkey King cut the third piece of cake into twelve pieces on average and gave three pieces to Monkey 3. Children, do you know which monkey has more points?

discuss:

Which monkey gets the most?

Please express your opinions.

Fill in the brackets on the book.

Observe the three sets of formulas on the left to see how the numerator and denominator change. Summarize it in one sentence;

Observe how the numerator and denominator of the three sets of formulas on the right change. Summarize it in one sentence;

When the numerator and denominator of a fraction are multiplied or divided by the same number (except zero), the magnitude of the fraction remains unchanged. This is called the basic property of fractions.

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For more information about the PPT courseware "The Meaning and Properties of Fractions and the Basic Properties of Fractions", please click the "The Meaning and Properties of Fractions ppt Basic Properties of 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 2:

"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 skills and draw...

"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...

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Update Time: 2024-11-22

This template belongs to Mathematics courseware Jiangsu Education Edition Fifth Grade Mathematics Volume 2 industry PPT template

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