Free Grade 3 Working with Introducing Sampling Essentials: Visual Models — Application Lesson Plans
Free Grade 3 lesson plans for Working with Introducing Sampling Essentials: Visual Models — Application: 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
25 min
24
Learning objectives
Every objective is checkable, and each one maps to an activity and an assessment.
- RememberIdentify working with introducing sampling essentials: visual models — application
Identify working with introducing sampling essentials: visual models — application accurately in a familiar context.
Assessed by: Exit ticket of four short items
- UnderstandExplain working with introducing sampling essentials: visual models — application
Explain working with introducing sampling essentials: visual models — application accurately in a familiar context.
Assessed by: Exit ticket of four short items
- ApplyCalculate working with introducing sampling essentials: visual models — application
Calculate working with introducing sampling essentials: visual models — application accurately in a familiar context.
Assessed by: Exit ticket of four short items
- AnalyseCompare working with introducing sampling essentials: visual models — application
Compare working with introducing sampling essentials: visual models — application 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 Working with Introducing Sampling Essentials: Visual Models — Application 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 14, Blue 11, Green 2, Yellow 14. In a pie chart, what angle does Green get?[1]
- 2.In a survey: Red 8, Blue 3, Green 7, Yellow 15. In a pie chart, what angle does Red get?[1]
- 3.In a survey: Red 12, Blue 7, Green 10, Yellow 13. In a pie chart, what angle does Blue get?[1]
- 4.In a survey: Red 12, Blue 9, Green 5, Yellow 2. In a pie chart, what angle does Yellow get?[1]
- 5.In a survey: Red 10, Blue 5, Green 4, Yellow 15. In a pie chart, what angle does Yellow get?[2]
- 6.In a survey: Red 10, Blue 12, Green 9, Yellow 5. In a pie chart, what angle does Red get?[2]
- 7.In a survey: Red 13, Blue 6, Green 12, Yellow 9. In a pie chart, what angle does Green get?[2]
- 8.In a survey: Red 13, Blue 5, Green 11, Yellow 9. In a pie chart, what angle does Yellow get?[2]
- 9.In a survey: Red 10, Blue 14, Green 15, Yellow 2. In a pie chart, what angle does Red get?[3]
- 10.In a survey: Red 8, Blue 10, Green 5, Yellow 2. In a pie chart, what angle does Red get?[3]
- 11.In a survey: Red 2, Blue 7, Green 4, Yellow 15. In a pie chart, what angle does Blue get?[3]
- 12.In a survey: Red 13, Blue 7, Green 7, Yellow 4. In a pie chart, what angle does Yellow get?[3]
Show answers and working
1. 17.6°
Total = 41. Green fraction = 2/41. 2/41 × 360° = 17.6°.
2. 87.3°
Total = 33. Red fraction = 8/33. 8/33 × 360° = 87.3°.
3. 60°
Total = 42. Blue fraction = 7/42. 7/42 × 360° = 60°.
4. 25.7°
Total = 28. Yellow fraction = 2/28. 2/28 × 360° = 25.7°.
5. 158.8°
Total = 34. Yellow fraction = 15/34. 15/34 × 360° = 158.8°.
6. 100°
Total = 36. Red fraction = 10/36. 10/36 × 360° = 100°.
7. 108°
Total = 40. Green fraction = 12/40. 12/40 × 360° = 108°.
8. 85.3°
Total = 38. Yellow fraction = 9/38. 9/38 × 360° = 85.3°.
9. 87.8°
Total = 41. Red fraction = 10/41. 10/41 × 360° = 87.8°.
10. 115.2°
Total = 25. Red fraction = 8/25. 8/25 × 360° = 115.2°.
11. 90°
Total = 28. Blue fraction = 7/28. 7/28 × 360° = 90°.
12. 46.5°
Total = 31. Yellow fraction = 4/31. 4/31 × 360° = 46.5°.
Worked examples
In a survey: Red 12, Blue 2, Green 7, Yellow 4. In a pie chart, what angle does Green get?
- Total = 25.
- Green fraction = 7/25.
- 7/25 × 360° = 100.8°.
- Answer: 100.8°
In a survey: Red 13, Blue 6, Green 3, Yellow 9. In a pie chart, what angle does Green get?
- Total = 31.
- Green fraction = 3/31.
- 3/31 × 360° = 34.8°.
- Answer: 34.8°
In a survey: Red 3, Blue 14, Green 15, Yellow 2. In a pie chart, what angle does Red get?
- Total = 34.
- Red fraction = 3/34.
- 3/34 × 360° = 31.8°.
- Answer: 31.8°
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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