Free Grade 3 What is Working with Introducing Sampling Common Errors Lesson Plans
Free Grade 3 lesson plans for What is Working with Introducing Sampling Common Errors: 12 real questions with a full answer key and worked solutions. Charts show data visually. In a pie chart, each category's angle is its fraction of the total multiplied by 360°.
Free
Core
30 min
24
Learning objectives
Every objective is checkable, and each one maps to an activity and an assessment.
- UnderstandExplain what is working with introducing sampling common errors
Explain what is working with introducing sampling common errors accurately in a familiar context.
Assessed by: Exit ticket of four short items
- ApplyCalculate what is working with introducing sampling common errors
Calculate what is working with introducing sampling common errors accurately in a familiar context.
Assessed by: Exit ticket of four short items
- AnalyseCompare what is working with introducing sampling common errors
Compare what is working with introducing sampling common errors accurately in a familiar context.
Assessed by: Exit ticket of four short items
- EvaluateJustify what is working with introducing sampling common errors
Justify what is working with introducing sampling common errors accurately in a familiar context.
Assessed by: Exit ticket of four short items
Prerequisites
Close these gaps first — each has its own free lesson, worksheet and quiz.
How What is Working with Introducing Sampling Common Errors works
Charts show data visually. In a pie chart, each category's angle is its fraction of the total multiplied by 360°.
12 practice questions
Easy to hard, 24 marks in total. Try them first, then open the answers.
- 1.In a survey: Red 8, Blue 13, Green 2, Yellow 10. In a pie chart, what angle does Yellow get?[1]
- 2.In a survey: Red 12, Blue 14, Green 12, Yellow 14. In a pie chart, what angle does Yellow get?[1]
- 3.In a survey: Red 7, Blue 7, Green 7, Yellow 13. In a pie chart, what angle does Yellow get?[1]
- 4.In a survey: Red 8, Blue 15, Green 12, Yellow 6. In a pie chart, what angle does Green get?[1]
- 5.In a survey: Red 15, Blue 2, Green 11, Yellow 3. In a pie chart, what angle does Green get?[2]
- 6.In a survey: Red 3, Blue 6, Green 11, Yellow 6. In a pie chart, what angle does Blue get?[2]
- 7.In a survey: Red 4, Blue 2, Green 7, Yellow 10. In a pie chart, what angle does Red get?[2]
- 8.In a survey: Red 3, Blue 8, Green 2, Yellow 13. In a pie chart, what angle does Red get?[2]
- 9.In a survey: Red 12, Blue 2, Green 8, Yellow 3. In a pie chart, what angle does Green get?[3]
- 10.In a survey: Red 8, Blue 15, Green 12, Yellow 11. In a pie chart, what angle does Red get?[3]
- 11.In a survey: Red 5, Blue 12, Green 11, Yellow 6. In a pie chart, what angle does Blue get?[3]
- 12.In a survey: Red 11, Blue 4, Green 15, Yellow 13. In a pie chart, what angle does Blue get?[3]
Show answers and working
1. 109.1°
Total = 33. Yellow fraction = 10/33. 10/33 × 360° = 109.1°.
2. 96.9°
Total = 52. Yellow fraction = 14/52. 14/52 × 360° = 96.9°.
3. 137.6°
Total = 34. Yellow fraction = 13/34. 13/34 × 360° = 137.6°.
4. 105.4°
Total = 41. Green fraction = 12/41. 12/41 × 360° = 105.4°.
5. 127.7°
Total = 31. Green fraction = 11/31. 11/31 × 360° = 127.7°.
6. 83.1°
Total = 26. Blue fraction = 6/26. 6/26 × 360° = 83.1°.
7. 62.6°
Total = 23. Red fraction = 4/23. 4/23 × 360° = 62.6°.
8. 41.5°
Total = 26. Red fraction = 3/26. 3/26 × 360° = 41.5°.
9. 115.2°
Total = 25. Green fraction = 8/25. 8/25 × 360° = 115.2°.
10. 62.6°
Total = 46. Red fraction = 8/46. 8/46 × 360° = 62.6°.
11. 127.1°
Total = 34. Blue fraction = 12/34. 12/34 × 360° = 127.1°.
12. 33.5°
Total = 43. Blue fraction = 4/43. 4/43 × 360° = 33.5°.
Worked examples
In a survey: Red 15, Blue 6, Green 7, Yellow 12. In a pie chart, what angle does Red get?
- Total = 40.
- Red fraction = 15/40.
- 15/40 × 360° = 135°.
- Answer: 135°
In a survey: Red 9, Blue 11, Green 12, Yellow 13. In a pie chart, what angle does Red get?
- Total = 45.
- Red fraction = 9/45.
- 9/45 × 360° = 72°.
- Answer: 72°
In a survey: Red 6, Blue 4, Green 3, Yellow 13. In a pie chart, what angle does Red get?
- Total = 26.
- Red fraction = 6/26.
- 6/26 × 360° = 83.1°.
- Answer: 83.1°
Interactive practice
Free, no account required — answer on screen or print it.
Common mistakes
What learners typically get wrong, and how to fix it.
Uses 100 instead of 360 for pie-chart angles.
Correction: A full circle is 360°.
Forgets to find the total first.
Correction: Add all frequencies before working out fractions.
Teacher tips
- · Have pupils check that all angles add to 360°.
Parent tips
- · Look at charts in the news and ask what they show.
Real-life applications
- · News infographics, survey results.
Assessment objectives
How mastery is evidenced, and which standards it maps to.
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- What should a learner already know before this?
- Start with Rules and Methods in Introducing Sampling Common Errors. Each one has its own free lesson, worksheet and quiz.
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- Move on to Working with Introducing Sampling Common Errors: Step-by-step Method, Working with Introducing Sampling Common Errors: Worked Examples, Working with Introducing Sampling Common Errors: Visual Models, Working with Introducing Sampling Common Errors: Common Mistakes, which build directly on this idea.
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