Teaching objectives
1, to understand the characteristics and functions of departmental statistical charts;
2, can contact the meaning of percentage, and make a simple analysis of the information provided by the department statistical chart.
If you don't understand or understand something, underline it, and then? Make a mark. When it's convenient to communicate.
4. You can annotate your own suggestions, experiences and methods.
Emphasis and difficulty in teaching
1, to understand the characteristics and functions of departmental statistical charts;
2, can contact the meaning of percentage, and make a simple analysis of the information provided by the department statistical chart.
teaching tool
courseware
teaching process
First, happy self-study
Do you like sports? Investigate the sports that the students in this class like. According to the following statistics:
Favorite sports statistics of Class 6 (1)
1. Tell me: What information can you get from this statistical chart?
2. I know this is a () statistical chart, and its characteristics are (? )。
3. My favorite sport is (), and its percentage in the class is (). To clearly know the percentage and other information, we can choose () statistical chart.
4. Let's take a look at the fan charts! Self-study textbook page 107, pay attention to using strokes! .
(1) Calculate the percentage of each sport in the class.
(2) What information can be obtained from the vermicelli map?
(3) What other questions can you ask?
Second, cooperation and exploration.
Discuss and communicate: how do fan-shaped statistical charts represent various data? What are its characteristics?
1, I found that () in the sector statistics chart means "1", which means (), and the area of each sector means (? ), the size of the fan display (? )。
2, the characteristics of the pie chart is ().
3. In your life, have you seen the fan picture of ()?
Third, learning summary
The statistical chart we have learned has a bar chart, which is characterized by (); There is also a statistical chart, which is characterized by not only showing the quantity of each part, but also clearly seeing the change of quantity. We learned the pie chart again today, and its characteristic is ().
Fourth, I am brave and fearless, and I am a small champion.
1, level one: practice.
Complete questions 1 and 2 in Exercise 25.
2, the second level
Complete question 4 of exercise 25.
Reflection after learning verbs (abbreviation of verb)
1, my harvest:
2. Self-evaluation: Interested in your classroom performance (? ), because (? )。
Sixth, homework
1. Complete the textbook P 107.
2. Exercise 25, Question 3
homework
1, complete the textbook P 107 "Do it".
2. Exercise 25, question 3.