"Happy Farm Tour" PPT courseware 9

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"Happy Farm Tour" PPT courseware 9

1. Situation introduction

The number of self-driving tourists last year was 480

There were 540 people traveling by car this year

How many percent more people are traveling by car this year than last year?

How many percent fewer people traveled by car last year than this year?

The number of group tours last year was 500

The number of group tours this year is 520

How many percent more group tours will there be this year than last year?

How many percent fewer people did group tours last year than this year?

What mathematical information do you know from the picture?

What questions can you ask based on this information?

2. Cooperation and exploration

How many percent more people are traveling by car this year than last year?

Think about it: "How many percent more people travel by car this year than last year?" What does it mean?

"What percentage of the number of self-driving tourists this year is more than last year" refers to the percentage of the number of self-driving tourists this year compared to last year.

Let’s calculate first: How many more people are traveling by car this year than last year?

Calculate again: What percentage of the number of people traveling by car this year accounted for last year’s number of self-driving tourists?

(540－480)÷480

= 60÷480

= 12.5%

Answer: The number of self-driving tourists this year is 12.5% ​​more than last year.

3. Independent practice

1. There are 100 boys and 125 girls in the sixth grade of Wenhua Road Primary School.

(1) How many percent fewer boys are there than girls?

(2) How many percent more girls than boys there are?

(1) (125-100)÷125 (2) (125-100)÷100

= 25 ÷125 = 25 ÷100

= 20% = 25%

Answer: The number of boys is 20% less than the number of girls. Answer: There are 25% more girls than boys.

Think about it: What are the connections and differences between these two questions?

Contact: It all depends on how many more girls there are than boys.

Difference: "Unit 1" is different.

2. The library corner of Class 1, Grade 6, originally had 240 books, but this semester we purchased another 60 books. By what percentage have the books in the library corner increased?

60 ÷ 240 = 25%

Answer: An increase of 25%.

3. A car sold for 200,000 yuan last year, and its price dropped by 40,000 yuan this year compared to last year. By what percentage did the price drop this year compared to last year?

4 ÷ 20 = 20%

Answer: This year’s price is 20% lower than last year.

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Update Time: 2024-10-20

This template belongs to Mathematics courseware Qingdao Edition Sixth Grade Mathematics Volume 2 industry PPT template

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