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E:\Working\Focus_Learning\Math_Genius-8\Open_Files\05_Chapter_4\Chapter_4
\ 06-Jan-2025 Bharat Arora Proof-6 Reader’s Sign _______________________ Date __________
Learning by Doing
Objective: Conduct a survey (favourite TV channels, sports, subjects,
colours, ice cream flavours, hobbies, etc.) and display the result through
a pie chart
Materials Required: Chart paper, colour pencils, ruler, scissors and glue
Procedure:
• Divide the class into groups of 3-4 students each and assign a topic to each group for
survey.
• Ask them to conduct a survey and make a table to note down the responses. Suppose a
group conduct a class survey to know the favourite TV channels and note the responses
in the following table.
Channels Number of votes Fraction of total votes Percentage of total votes
News 3
Movies 4
History and nature 6
Sports 5
Cartoon 7
• Next, take a strip of thick chart paper, 1 cm wide and divide it into equal-sized rectangles
– one for each student in your class. The entire strip represents your whole class or 100%
of the votes. On your strip, colour groups of rectangles according to the number of votes
each choice is received. Use a different colour for each choice. For example, if 3 students
voted for news, 4 chose movies, 6 chose history and nature, and so on. Colour the first
3 rectangles green, the next 4 rectangles violet, 6 rectangles grey, etc.
• Tape the ends of your strip together, with no overlap, to form a
loop with the coloured rectangles inside.
• Tape four copies of the quarter-circle template together to form
a circle.
• Place your above loop around the circle. On the edge of the circle,
mark where each colour begins and ends. Remove the loop, and use a ruler to connect
each mark you made to the centre of the circle.
• Colour the sections of your graph. Label each Favourite Channels
section with the channel’s name and the 7 News 3
fraction of votes that the channel received. Cartoon 25 25
For example, your circle graph known as a
pie chart might look like this. 4
Movies
• Circle graphs in books, magazines, and 5 25
newspapers are often labelled with per cents. Sports 25 History and nature 6
Add per cent labels to your pie chart. 25
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