"Planting Garlic Seedlings (2)" Data Representation and Analysis PPT

Description

"Planting Garlic Seedlings (2)" Data Representation and Analysis PPT

Part One: Learning Objectives

1. Experience the process of processing experimental data and understand the characteristics of line statistical charts.

2. Through our independent exploration and cooperation and communication, we experience the process of data collection, organization, description and analysis, and cultivate our thinking abilities of observation, analysis, comparison, generalization and summary.

[Key Points] Through observation and comparison, we realize that the line statistical chart can clearly represent the increase or decrease in quantity: a preliminary understanding of the structural characteristics and advantages of the line statistical chart.

[Difficulty] How to better communicate data collection methods, and describe and analyze the data.

Planting garlic seedlings PPT, part 2: exploration of new knowledge

Recognize it and tell me, how did you get the picture below?

The first point is the height of the garlic seedlings on the second day, which is 1 cm.

The second point is the height of the garlic seedlings on the 4th day, which is 3 cm. The third point...

Connect each dot in sequence...

This is a line chart that allows us to visually see the growth of garlic seedlings.

To summarize, how to draw a line chart:

1. Draw two mutually perpendicular rays as the horizontal and vertical axes.

2. Use a certain unit length to represent a certain quantity.

3. Trace the corresponding points according to the quantity.

4. Connect the points in sequence with line segments.

Think about it. During which time do garlic seedlings grow fastest?

Method 1: You can calculate which period of time the garlic seedlings will grow fastest.

Method 2: You can judge the period during which garlic seedlings grow fastest through the steepness of the line chart.

Planting garlic seedlings PPT, Part 3: Classroom exercises

1. Xiaoxiao draws the changes in indoor temperature into the statistical chart below.

(1) Xiaoxiao measures body temperature every hour.

(2) How does the temperature overall change from 8:00 to 16:00 on this day?

The temperature from 8:00 to 13:00 shows an upward trend, the temperature from 13:00 to 14:00 is stable, and the temperature from 14:00 to 16:00 shows a downward trend.

(3) Please ask another mathematical question and try to answer it.

When is the highest temperature from 8:00 to 16:00 on this day? When is the temperature lowest? How much difference?

The temperature is the highest from 13:00 to 14:00, and the temperature is the lowest at 8:00, with a difference of 6℃.

Planting garlic seedlings PPT, Part 4 content: Class summary

A line chart uses a certain unit length to represent a certain quantity. You must first draw each point based on the data given in the question, and then connect the points sequentially with line segments. Characteristics of the line chart: The line chart can not only show the quantity, but also the increase or decrease in the quantity.

Planting garlic seedlings PPT, Part 5: Classwork

1. True or false question.

(1) When drawing a line statistical chart, you should connect the lines first and then draw the points ( ).

(2) A weather station wants to draw a statistical chart reflecting the temperature changes in recent days, and it is more appropriate to use a bar chart. ( ).

(3) Line statistical charts can express not only the quantity, but also the increase or decrease. ( )

(4) A line chart can clearly show the relationship between each part and the total. ( )

2. Answer the questions based on the statistical chart below of the average monthly temperature in a certain area in 2018.

(1) Which months have the average monthly temperature above 20°C?

May, June, July, August, September.

(2) The temperature in the month with the highest average monthly temperature is ( ) times that of the month with the lowest temperature

(3) The temperature rises fastest from ( ) to ( )

(4) The temperature drops fastest from ( ) to ( )

Keywords: Free download of Beijing Normal University edition fourth-grade mathematics PPT courseware for the second volume, PPT download of planting garlic seedlings, PPT download of data representation and analysis, .PPT format;

For more information about the PPT courseware "Representation and Analysis of Data on Planting Garlic Seedlings", please click on the PPT tab of "Representation and Analysis of Data on Planting Garlic Seedlings".

"Planting Garlic Seedlings (1)" Data Representation and Analysis PPT (Lesson 2):

"Planting Garlic Seedlings (1)" Data Representation and Analysis PPT (Lesson 2) Part One: Learning Objectives 1. Through the activities of processing experimental data, realize the necessity of one graph in a statistical chart to represent multiple units. 2. Understand what the data on the pictographic chart represents..

"Planting Garlic Seedlings (1)" Data Representation and Analysis PPT (Lesson 1):

"Planting Garlic Seedlings (1)" Data Representation and Analysis PPT (Lesson 1) Part One: Learning Objectives 1. Combined with the experimental data of growing garlic seedlings, guide us to improve the statistical chart and feel that one grid in the statistical chart represents multiple unit quantities necessity. 2. Cultivate us through activities..

File Info

Update Time: 2024-11-22

This template belongs to Mathematics courseware Beijing Normal University Edition Fourth Grade Mathematics Volume 2 industry PPT template

Preview