"The Meaning of Percents" Understanding Percents PPT Courseware 3

Description

"The Meaning of Percents" Understanding Percents PPT Courseware 3

teaching objectives

1. Combined with specific examples, go through the process of understanding percentages.

2. Understand the meaning of percentages, be able to recognize, read and write percentages, and be able to make reasonable explanations for information about percentages in life.

3. Stimulate students’ curiosity about things related to percentages in the surrounding environment.

Percentage around us

1. The green area of ​​Xukou Central Primary School accounts for 43% of the total campus area.

2. Among the teachers at Xukou Central Primary School, 87.1% have a college degree or above.

3. Among the students in Class 6 (5) of Xukou Central Primary School, 48% are girls.

A number that expresses what percent of another number is a number is called a percentage. Percentage is also called percentage or percentage.

Fill in the blanks according to the meaning of each percentage below.

⑴In the school chorus, the number of boys is 45% of the number of girls.

In the school chorus, the number of boys is 45/100 of the number of girls, and the ratio of boys to girls is ( ) � 100.

⑵The myopia rate among students in Class 1 of Grade 6 is 20%.

Among the students in a class of sixth grade, the number of students ( ) accounts for 20% of the class.

Read the following sentences and understand the meaning of percentages in the sentences.

1. 40% of a book has been read.

2. The bicycle factory completed 60% of the plan in the first half of the year.

Practical investigation:

Collect more than 5 percentages encountered in daily life and understand the meaning of these percentages.

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Update Time: 2024-10-19

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

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