Free Grade 3 What is Working with Introducing Sampling Common Errors Flashcards
Free Grade 3 flashcards 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
Higher
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 6, Blue 14, Green 5, Yellow 7. In a pie chart, what angle does Yellow get?[1]
- 2.In a survey: Red 4, Blue 11, Green 8, Yellow 7. In a pie chart, what angle does Yellow get?[1]
- 3.In a survey: Red 8, Blue 9, Green 15, Yellow 13. In a pie chart, what angle does Green get?[1]
- 4.In a survey: Red 4, Blue 5, Green 9, Yellow 2. In a pie chart, what angle does Blue get?[1]
- 5.In a survey: Red 6, Blue 11, Green 14, Yellow 2. In a pie chart, what angle does Yellow get?[2]
- 6.In a survey: Red 15, Blue 10, Green 6, Yellow 14. In a pie chart, what angle does Green get?[2]
- 7.In a survey: Red 14, Blue 6, Green 14, Yellow 10. In a pie chart, what angle does Blue get?[2]
- 8.In a survey: Red 15, Blue 14, Green 8, Yellow 6. In a pie chart, what angle does Green get?[2]
- 9.In a survey: Red 7, Blue 10, Green 9, Yellow 11. In a pie chart, what angle does Blue get?[3]
- 10.In a survey: Red 4, Blue 5, Green 10, Yellow 14. In a pie chart, what angle does Blue get?[3]
- 11.In a survey: Red 2, Blue 12, Green 8, Yellow 7. In a pie chart, what angle does Yellow get?[3]
- 12.In a survey: Red 7, Blue 6, Green 8, Yellow 4. In a pie chart, what angle does Blue get?[3]
Show answers and working
1. 78.8°
Total = 32. Yellow fraction = 7/32. 7/32 × 360° = 78.8°.
2. 84°
Total = 30. Yellow fraction = 7/30. 7/30 × 360° = 84°.
3. 120°
Total = 45. Green fraction = 15/45. 15/45 × 360° = 120°.
4. 90°
Total = 20. Blue fraction = 5/20. 5/20 × 360° = 90°.
5. 21.8°
Total = 33. Yellow fraction = 2/33. 2/33 × 360° = 21.8°.
6. 48°
Total = 45. Green fraction = 6/45. 6/45 × 360° = 48°.
7. 49.1°
Total = 44. Blue fraction = 6/44. 6/44 × 360° = 49.1°.
8. 67°
Total = 43. Green fraction = 8/43. 8/43 × 360° = 67°.
9. 97.3°
Total = 37. Blue fraction = 10/37. 10/37 × 360° = 97.3°.
10. 54.5°
Total = 33. Blue fraction = 5/33. 5/33 × 360° = 54.5°.
11. 86.9°
Total = 29. Yellow fraction = 7/29. 7/29 × 360° = 86.9°.
12. 86.4°
Total = 25. Blue fraction = 6/25. 6/25 × 360° = 86.4°.
Worked examples
In a survey: Red 3, Blue 4, Green 7, Yellow 2. In a pie chart, what angle does Green get?
- Total = 16.
- Green fraction = 7/16.
- 7/16 × 360° = 157.5°.
- Answer: 157.5°
In a survey: Red 7, Blue 11, Green 4, Yellow 5. In a pie chart, what angle does Yellow get?
- Total = 27.
- Yellow fraction = 5/27.
- 5/27 × 360° = 66.7°.
- Answer: 66.7°
In a survey: Red 3, Blue 8, Green 10, Yellow 5. In a pie chart, what angle does Yellow get?
- Total = 26.
- Yellow fraction = 5/26.
- 5/26 × 360° = 69.2°.
- Answer: 69.2°
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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- 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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