2. Listen and read.
(Nghe và đọc.)
Using a bar chart for a survey
(Sử dụng biểu đồ cột cho cuộc khảo sát)
1. Choose a question for your survey. For example, What time do you go to bed? Draw a table on paper. Write bedtimes for the rows and your friends' names for the columns.
2. Ask your friends "When do you go to bed? Check (√) the time on the table.
3. Look at the information from your survey. Draw a bar chart with the information. Use different colors for each column.
4. The bar chart clearly shows how many children go to bed at each time.













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