Free Grade 3 Rules and Methods in Introducing Sampling Techniques: Visual Models Lesson Plans
Free Grade 3 lesson plans for Rules and Methods in Introducing Sampling Techniques: 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
Core
25 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 techniques: visual models
Explain rules and methods in introducing sampling techniques: visual models accurately in a familiar context.
Assessed by: Exit ticket of four short items
- ApplyCalculate rules and methods in introducing sampling techniques: visual models
Calculate rules and methods in introducing sampling techniques: visual models accurately in a familiar context.
Assessed by: Exit ticket of four short items
- AnalyseCompare rules and methods in introducing sampling techniques: visual models
Compare rules and methods in introducing sampling techniques: visual models accurately in a familiar context.
Assessed by: Exit ticket of four short items
- EvaluateJustify rules and methods in introducing sampling techniques: visual models
Justify rules and methods in introducing sampling techniques: 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 Techniques: 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 6, Blue 9, Green 4, Yellow 15. In a pie chart, what angle does Blue get?[1]
- 2.In a survey: Red 15, Blue 2, Green 5, Yellow 8. In a pie chart, what angle does Green get?[1]
- 3.In a survey: Red 2, Blue 8, Green 13, Yellow 5. In a pie chart, what angle does Blue get?[1]
- 4.In a survey: Red 8, Blue 7, Green 4, Yellow 3. In a pie chart, what angle does Yellow get?[1]
- 5.In a survey: Red 7, Blue 9, Green 7, Yellow 2. In a pie chart, what angle does Yellow get?[2]
- 6.In a survey: Red 5, Blue 9, Green 11, Yellow 14. In a pie chart, what angle does Yellow get?[2]
- 7.In a survey: Red 4, Blue 8, Green 14, Yellow 7. In a pie chart, what angle does Blue get?[2]
- 8.In a survey: Red 3, Blue 14, Green 6, Yellow 10. In a pie chart, what angle does Yellow get?[2]
- 9.In a survey: Red 13, Blue 4, Green 5, Yellow 10. In a pie chart, what angle does Red get?[3]
- 10.In a survey: Red 15, Blue 11, Green 10, Yellow 6. In a pie chart, what angle does Red get?[3]
- 11.In a survey: Red 5, Blue 3, Green 12, Yellow 13. In a pie chart, what angle does Yellow get?[3]
- 12.In a survey: Red 7, Blue 12, Green 5, Yellow 11. In a pie chart, what angle does Green get?[3]
Show answers and working
1. 95.3°
Total = 34. Blue fraction = 9/34. 9/34 × 360° = 95.3°.
2. 60°
Total = 30. Green fraction = 5/30. 5/30 × 360° = 60°.
3. 102.9°
Total = 28. Blue fraction = 8/28. 8/28 × 360° = 102.9°.
4. 49.1°
Total = 22. Yellow fraction = 3/22. 3/22 × 360° = 49.1°.
5. 28.8°
Total = 25. Yellow fraction = 2/25. 2/25 × 360° = 28.8°.
6. 129.2°
Total = 39. Yellow fraction = 14/39. 14/39 × 360° = 129.2°.
7. 87.3°
Total = 33. Blue fraction = 8/33. 8/33 × 360° = 87.3°.
8. 109.1°
Total = 33. Yellow fraction = 10/33. 10/33 × 360° = 109.1°.
9. 146.3°
Total = 32. Red fraction = 13/32. 13/32 × 360° = 146.3°.
10. 128.6°
Total = 42. Red fraction = 15/42. 15/42 × 360° = 128.6°.
11. 141.8°
Total = 33. Yellow fraction = 13/33. 13/33 × 360° = 141.8°.
12. 51.4°
Total = 35. Green fraction = 5/35. 5/35 × 360° = 51.4°.
Worked examples
In a survey: Red 15, Blue 4, Green 15, Yellow 12. In a pie chart, what angle does Yellow get?
- Total = 46.
- Yellow fraction = 12/46.
- 12/46 × 360° = 93.9°.
- Answer: 93.9°
In a survey: Red 10, Blue 3, Green 8, Yellow 6. In a pie chart, what angle does Yellow get?
- Total = 27.
- Yellow fraction = 6/27.
- 6/27 × 360° = 80°.
- Answer: 80°
In a survey: Red 4, Blue 6, Green 15, Yellow 8. In a pie chart, what angle does Yellow get?
- Total = 33.
- Yellow fraction = 8/33.
- 8/33 × 360° = 87.3°.
- Answer: 87.3°
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 Techniques: Worked Examples, Rules and Methods in Introducing Sampling Techniques: Step-by-step Method, Key Vocabulary of Introducing Sampling Techniques. Each one has its own free lesson, worksheet and quiz.
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- What comes next after Rules and Methods in Introducing Sampling Techniques: Visual Models?
- Move on to Rules and Methods in Introducing Sampling Techniques: Common Mistakes, Rules and Methods in Introducing Sampling Techniques: Real-life Applications, Introduction to Introducing Sampling Techniques, Key Vocabulary of Introducing Sampling Techniques, which build directly on this idea.
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