"Simple Calculation of Fractions" Preliminary Understanding of Fractions PPT

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"Simple Calculation of Fractions" Preliminary Understanding of Fractions PPT

Part One: Learning Objectives

1. Be able to correctly calculate simple addition and subtraction of fractions based on understanding arithmetic.

2. Cultivate good thinking quality and improve thinking ability.

3. Cultivate the awareness of connecting with the reality of life and actively applying mathematics.

Simple calculation of fractions PPT, part 2: introducing new lessons

a watermelon,

The elder brother ate 2/8 and the younger brother ate 1/8.

What fraction of the watermelon did the brothers eat in total?

Consolidate and expand

After drinking 5/6 of a glass of juice, how much is left in the glass?

1-5/6=1/6

Answer: There is still 1/6 in the cup.

Simple calculation of fractions PPT, part 3: Class summary

1. Whether it is addition or subtraction, only fractions with the same denominator can be directly added or subtracted.

2. When adding and subtracting fractions with the same denominator, the denominator remains unchanged and only the numerators are added and subtracted.

3. When calculating how many fractions are subtracted from 1, first write "1" as a fraction with the same denominator as the subtrahend, and then subtract it from the subtrahend.

Keywords: Free download of PPT courseware for third-grade mathematics from the People's Education Press, simple calculation of fractions PPT download, preliminary understanding of fractions PPT download, .PPT format;

For more information about the "Preliminary Understanding of Fractions and Simple Calculation of Fractions" PPT courseware, please click the "Preliminary Understanding of Fractions PPT" Simple Calculation of Fractions PPT tag.

"Simple Calculation of Fractions" PPT teaching courseware for preliminary understanding of fractions:

"Simple Calculation of Fractions" Preliminary Understanding of Fractions PPT Teaching Courseware Part One Content: Topic Introduction 1. Review old knowledge. (1) Fold a square piece of paper into four parts, one of which is a quarter of the square ( ) . (2) Divide a circle into ten parts, and...

"Simple Calculation of Fractions" Preliminary understanding of fractions PPT download:

"Simple Calculation of Fractions" Preliminary understanding of fractions PPT download Part 1: Review old knowledge Use fractions to represent the colored parts below and compare them...

"Simple Calculation of Fractions" PPT courseware 2:

"Simple Calculation of Fractions" PPT Courseware 2 Mother Bear bought a big cake, Brother Bear ate ( ) of the cake, and Brother Bear ate ( ) of the cake. Xiaohong ate ( ) of the watermelon, and Xiaoli ate ( ) of the watermelon. What fraction of the watermelon did they eat in total? Bear..

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Update Time: 2024-09-25

This template belongs to Mathematics courseware People's Education Press Third Grade Mathematics Volume 1 industry PPT template

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