"Complex Bar Chart" Average and Bar Chart PPT

Description

"Complex Bar Chart" Average and Bar Chart PPT

Part One: Learning Objectives

1. Understand and draw compound bar charts, and understand its advantages and functions. (emphasis)

2. Able to discover information, analyze information and ask simple questions based on statistical charts. (difficulty)

Compound bar chart PPT, part 2: exploring new knowledge

Knowledge Points Complex Bar Chart

Complete the following two statistical graphs.

It is inconvenient to observe.

How to simply and clearly compare the changes in the number of people in urban and rural areas in the same year?

It would be fine if the two pictures could be combined.

What is the difference between it and a single bar chart?

A single bar chart is used to compare one object, and a compound bar chart is used to compare the quantities of a larger number of objects.

Please answer the following questions based on the statistical chart:

1. Which year has the largest urban population?

year 2010

Which year has the least?

in 1980

2. In which year did the rural population have the largest number?

in 1980

Which year has the least?

year 2010

3. In which year was the largest difference in population between urban and rural areas?

in 1980

Which year is the youngest?

year 2010

4. What other information can you get?

Example: In recent years, the urban population in this region has been increasing, the rural population has been declining, the total population has gradually increased, and the difference in the number of urban and rural populations has been decreasing year by year.

Knowledge refining

1. The compound bar chart is basically the same as the single bar chart, except that there are two (or more) data in each group, and two (or more) different colors (or shading) need to be used. Represented by straight bars, and a legend must be noted.

2. The compound bar chart can not only clearly see the quantities of various quantities, but also clearly compare the quantities of two (or several) people or things.

Compound bar chart PPT, Part 3: Consolidation exercises

1. The standing long jump results of the fourth grade students of Yumin Primary School are as follows.

Please make a compound bar chart based on the above data.

(1) Girls whose scores are below 1.41m are considered failing, boys whose scores are below 1.48m are failed. There are 5 boys whose scores are between 1.42m and 1.48m. How many boys and girls failed the test?

There are 5 girls who failed, and 5 + 2 = 7 (people) boys who failed.

(2) What other information can you get?

Example: Most boys and girls have standing long jump scores between 1.52 and 1.61m. There are 5 fewer boys than girls with standing long jump scores between 1.42 and 1.51m. Boys have standing long jump scores above 1.72m (including 1.72m). There are 6 more people than girls...

2. The per capita housing area of ​​urban and rural residents in a certain area is as shown below.

(1) What information can you get?

Example: For both urban and rural residents, the per capita housing area has been increasing between 2008 and 2012; the per capita housing area in rural areas is larger than the per capita housing area in urban areas every year.

(2) Investigate the per capita housing area of ​​the families of the students in this class and create a bar chart based on the data of the students in the group.

Ask the students to do it themselves.

Compound bar chart PPT, Part 4 content: Class summary

What knowledge have you learned in this class?

1. The compound bar chart is basically the same as the single bar chart, except that there are two (or more) data in each group, and two (or more) different colors (or shading) need to be used. Represented by straight bars, and a legend must be noted.

2. The compound bar chart can not only clearly see the quantities of various quantities, but also clearly compare the quantities of two (or several) people or things.

Compound bar chart PPT, Part 5: Homework

Assignment 1: Complete the exercises related to the textbook.

Assignment 2: Complete the corresponding exercises.

Keywords: Free download of PPT courseware for mathematics in the second volume of the fourth grade of the People's Education Press, download of compound bar chart PPT, download of average and bar chart PPT, .PPT format;

For more information about the PPT courseware "Complex Bar Chart Average and Bar Chart", please click the Compound Bar Chart PPT Average and Bar Chart PPT tab.

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Update Time: 2024-09-08

This template belongs to Mathematics courseware People's Education Press Fourth Grade Mathematics Volume 2 industry PPT template

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