Public speaking · lesson 18 of 24 · free

Choosing the right chart — Public speaking for kids

A chart turns numbers into a picture. Use a bar chart to compare separate amounts (the July rainfall in four cities), a line chart for change over time (a puppy’s weight each week) and a pie chart for parts of one whole (what share of ₹100 of pocket money goes on saving, snacks and books). Give every chart a clear title, and practise saying what it shows in one sentence.

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Speaker's tip

Compare, change or share? — “bar compares, line shows change over time, pie shows parts of a whole”

  1. Bar chart: comparing separate amounts, like rainfall in four cities or the heights of four plants. Line chart: one thing changing over time. Pie chart: what share of one whole each part is (all slices make 100%).
  2. Reading charts: “how many more” = subtract; “in all” = add; the missing pie slice = 100 − the others.
  3. Every chart needs a clear title and labels.

Use it for: Project presentations, science fair posters, survey reports and maths or social science talks.

Worked example: 📊 Which chart best shows a puppy’s weight each week as it grows? → a line chart

  1. The weight is one thing changing week after week — change over time.
  2. So a line chart is the best choice.

Check: Practise aloud: point to a chart in a textbook and say in one sentence what it shows ✓

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✏️ Practice

Work it out in your head or on paper, type the answer and press Check. Stuck? Press “Show me how”.

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🏁 Lesson 18 test

20 questions. Check each answer, then go to the next one. Get 16 or more right to pass.

🏅 Sign in with Google to earn the 📊 Chart Chooser badge when you pass — and a certificate when you finish all 8 lessons of Part 3 · Presentations and school events. You can still take the test without signing in.

🖨️ Presentation Skills Worksheet: Choosing Charts

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