Free Grade 3 Rules and Methods in Introducing Sampling Essentials: Visual Models Lesson Plans
Free Grade 3 lesson plans for Rules and Methods in Introducing Sampling Essentials: Visual Models: 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
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20 min
24
Learning objectives
Every objective is checkable, and each one maps to an activity and an assessment.
- UnderstandExplain rules and methods in introducing sampling essentials: visual models
Explain rules and methods in introducing sampling essentials: visual models accurately in a familiar context.
Assessed by: Exit ticket of four short items
- ApplyCalculate rules and methods in introducing sampling essentials: visual models
Calculate rules and methods in introducing sampling essentials: visual models accurately in a familiar context.
Assessed by: Exit ticket of four short items
- AnalyseCompare rules and methods in introducing sampling essentials: visual models
Compare rules and methods in introducing sampling essentials: visual models accurately in a familiar context.
Assessed by: Exit ticket of four short items
- EvaluateJustify rules and methods in introducing sampling essentials: visual models
Justify rules and methods in introducing sampling essentials: visual models 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 Rules and Methods in Introducing Sampling Essentials: Visual Models 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 10, Blue 11, Green 12, Yellow 8. In a pie chart, what angle does Blue get?[1]
- 2.In a survey: Red 10, Blue 9, Green 15, Yellow 7. In a pie chart, what angle does Blue get?[1]
- 3.In a survey: Red 10, Blue 9, Green 8, Yellow 13. In a pie chart, what angle does Blue get?[1]
- 4.In a survey: Red 2, Blue 8, Green 12, Yellow 7. In a pie chart, what angle does Green get?[1]
- 5.In a survey: Red 6, Blue 3, Green 11, Yellow 7. In a pie chart, what angle does Green get?[2]
- 6.In a survey: Red 9, Blue 3, Green 2, Yellow 13. In a pie chart, what angle does Yellow get?[2]
- 7.In a survey: Red 9, Blue 12, Green 14, Yellow 12. In a pie chart, what angle does Red get?[2]
- 8.In a survey: Red 7, Blue 10, Green 12, Yellow 3. In a pie chart, what angle does Red get?[2]
- 9.In a survey: Red 4, Blue 2, Green 10, Yellow 13. In a pie chart, what angle does Yellow get?[3]
- 10.In a survey: Red 4, Blue 6, Green 12, Yellow 8. In a pie chart, what angle does Red get?[3]
- 11.In a survey: Red 11, Blue 13, Green 2, Yellow 12. In a pie chart, what angle does Blue get?[3]
- 12.In a survey: Red 5, Blue 11, Green 9, Yellow 4. In a pie chart, what angle does Blue get?[3]
Show answers and working
1. 96.6°
Total = 41. Blue fraction = 11/41. 11/41 × 360° = 96.6°.
2. 79°
Total = 41. Blue fraction = 9/41. 9/41 × 360° = 79°.
3. 81°
Total = 40. Blue fraction = 9/40. 9/40 × 360° = 81°.
4. 149°
Total = 29. Green fraction = 12/29. 12/29 × 360° = 149°.
5. 146.7°
Total = 27. Green fraction = 11/27. 11/27 × 360° = 146.7°.
6. 173.3°
Total = 27. Yellow fraction = 13/27. 13/27 × 360° = 173.3°.
7. 68.9°
Total = 47. Red fraction = 9/47. 9/47 × 360° = 68.9°.
8. 78.8°
Total = 32. Red fraction = 7/32. 7/32 × 360° = 78.8°.
9. 161.4°
Total = 29. Yellow fraction = 13/29. 13/29 × 360° = 161.4°.
10. 48°
Total = 30. Red fraction = 4/30. 4/30 × 360° = 48°.
11. 123.2°
Total = 38. Blue fraction = 13/38. 13/38 × 360° = 123.2°.
12. 136.6°
Total = 29. Blue fraction = 11/29. 11/29 × 360° = 136.6°.
Worked examples
In a survey: Red 5, Blue 7, Green 6, Yellow 2. In a pie chart, what angle does Yellow get?
- Total = 20.
- Yellow fraction = 2/20.
- 2/20 × 360° = 36°.
- Answer: 36°
In a survey: Red 13, Blue 8, Green 3, Yellow 10. In a pie chart, what angle does Yellow get?
- Total = 34.
- Yellow fraction = 10/34.
- 10/34 × 360° = 105.9°.
- Answer: 105.9°
In a survey: Red 15, Blue 10, Green 2, Yellow 7. In a pie chart, what angle does Green get?
- Total = 34.
- Green fraction = 2/34.
- 2/34 × 360° = 21.2°.
- Answer: 21.2°
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
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- Start with Rules and Methods in Introducing Sampling Essentials: Worked Examples, Rules and Methods in Introducing Sampling Essentials: Step-by-step Method, Key Vocabulary of Introducing Sampling Essentials. Each one has its own free lesson, worksheet and quiz.
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- What comes next after Rules and Methods in Introducing Sampling Essentials: Visual Models?
- Move on to Rules and Methods in Introducing Sampling Essentials: Common Mistakes, Rules and Methods in Introducing Sampling Essentials: Real-life Applications, Introduction to Introducing Sampling Essentials, Key Vocabulary of Introducing Sampling Essentials, which build directly on this idea.
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