Free Grade 3 Rules and Methods in Introducing Range Essentials Lesson Plans
Free Grade 3 lesson plans for Rules and Methods in Introducing Range Essentials: 12 real questions with a full answer key and worked solutions. The mean is the total divided by how many values. The median is the middle value in order. The mode is the most common. The range is largest minus smallest.
Free
Foundation
15 min
24
Learning objectives
Every objective is checkable, and each one maps to an activity and an assessment.
- RememberIdentify rules and methods in introducing range essentials
Identify rules and methods in introducing range essentials accurately in a familiar context.
Assessed by: Exit ticket of four short items
- UnderstandExplain rules and methods in introducing range essentials
Explain rules and methods in introducing range essentials accurately in a familiar context.
Assessed by: Exit ticket of four short items
- ApplyCalculate rules and methods in introducing range essentials
Calculate rules and methods in introducing range essentials accurately in a familiar context.
Assessed by: Exit ticket of four short items
- AnalyseCompare rules and methods in introducing range essentials
Compare rules and methods in introducing range essentials 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 Range Essentials works
The mean is the total divided by how many values. The median is the middle value in order. The mode is the most common. The range is largest minus smallest.
12 practice questions
Easy to hard, 24 marks in total. Try them first, then open the answers.
- 1.For the data 2, 5, 12, 13, 18, find the mean, median, mode and range.[1]
- 2.For the data 1, 3, 6, 7, 11, find the mean, median, mode and range.[1]
- 3.For the data 5, 8, 10, 16, 18, find the mean, median, mode and range.[1]
- 4.For the data 4, 5, 8, 14, 18, find the mean, median, mode and range.[1]
- 5.For the data 1, 23, 30, 33, 34, 37, 39, find the mean, median, mode and range.[2]
- 6.For the data 6, 9, 27, 30, 32, 35, 38, find the mean, median, mode and range.[2]
- 7.For the data 3, 11, 25, 27, 28, 37, 39, find the mean, median, mode and range.[2]
- 8.For the data 1, 3, 5, 14, 16, 19, 31, find the mean, median, mode and range.[2]
- 9.For the data 3, 3, 14, 32, 35, 36, 50, 52, 55, find the mean, median, mode and range.[3]
- 10.For the data 9, 18, 21, 29, 37, 38, 38, 44, 60, find the mean, median, mode and range.[3]
- 11.For the data 1, 2, 8, 10, 17, 30, 45, 45, 56, find the mean, median, mode and range.[3]
- 12.For the data 4, 18, 21, 21, 26, 26, 40, 44, 59, find the mean, median, mode and range.[3]
Show answers and working
1. Mean 10, median 12, mode none, range 16
Mean = 50 ÷ 5 = 10. Median = middle value in order = 12. Mode = most common = no repeated value. Range = 18 − 2 = 16.
2. Mean 5.6, median 6, mode none, range 10
Mean = 28 ÷ 5 = 5.6. Median = middle value in order = 6. Mode = most common = no repeated value. Range = 11 − 1 = 10.
3. Mean 11.4, median 10, mode none, range 13
Mean = 57 ÷ 5 = 11.4. Median = middle value in order = 10. Mode = most common = no repeated value. Range = 18 − 5 = 13.
4. Mean 9.8, median 8, mode none, range 14
Mean = 49 ÷ 5 = 9.8. Median = middle value in order = 8. Mode = most common = no repeated value. Range = 18 − 4 = 14.
5. Mean 28.14, median 33, mode none, range 38
Mean = 197 ÷ 7 = 28.14. Median = middle value in order = 33. Mode = most common = no repeated value. Range = 39 − 1 = 38.
6. Mean 25.29, median 30, mode none, range 32
Mean = 177 ÷ 7 = 25.29. Median = middle value in order = 30. Mode = most common = no repeated value. Range = 38 − 6 = 32.
7. Mean 24.29, median 27, mode none, range 36
Mean = 170 ÷ 7 = 24.29. Median = middle value in order = 27. Mode = most common = no repeated value. Range = 39 − 3 = 36.
8. Mean 12.71, median 14, mode none, range 30
Mean = 89 ÷ 7 = 12.71. Median = middle value in order = 14. Mode = most common = no repeated value. Range = 31 − 1 = 30.
9. Mean 31.11, median 35, mode 3, range 52
Mean = 280 ÷ 9 = 31.11. Median = middle value in order = 35. Mode = most common = 3. Range = 55 − 3 = 52.
10. Mean 32.67, median 37, mode 38, range 51
Mean = 294 ÷ 9 = 32.67. Median = middle value in order = 37. Mode = most common = 38. Range = 60 − 9 = 51.
11. Mean 23.78, median 17, mode 45, range 55
Mean = 214 ÷ 9 = 23.78. Median = middle value in order = 17. Mode = most common = 45. Range = 56 − 1 = 55.
12. Mean 28.78, median 26, mode 21 and 26, range 55
Mean = 259 ÷ 9 = 28.78. Median = middle value in order = 26. Mode = most common = 21 and 26. Range = 59 − 4 = 55.
Worked examples
For the data 1, 7, 7, 13, 17, find the mean, median, mode and range.
- Mean = 45 ÷ 5 = 9.
- Median = middle value in order = 7.
- Mode = most common = 7.
- Range = 17 − 1 = 16.
- Answer: Mean 9, median 7, mode 7, range 16
For the data 2, 5, 7, 8, 9, 9, 15, find the mean, median, mode and range.
- Mean = 55 ÷ 7 = 7.86.
- Median = middle value in order = 8.
- Mode = most common = 9.
- Range = 15 − 2 = 13.
- Answer: Mean 7.86, median 8, mode 9, range 13
For the data 3, 33, 34, 38, 43, 44, 47, 48, 59, find the mean, median, mode and range.
- Mean = 349 ÷ 9 = 38.78.
- Median = middle value in order = 43.
- Mode = most common = no repeated value.
- Range = 59 − 3 = 56.
- Answer: Mean 38.78, median 43, mode none, range 56
Interactive practice
Free, no account required — answer on screen or print it.
Common mistakes
What learners typically get wrong, and how to fix it.
Finds the median without ordering the data.
Correction: Always put the numbers in order first.
Gives the range as the two end numbers.
Correction: Range is one number: largest minus smallest.
Teacher tips
- · Collect real class data (heights, shoe sizes).
Parent tips
- · Work out your average bedtime over a week.
Real-life applications
- · Sports averages, typical prices, test scores.
Assessment objectives
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- What should a learner already know before this?
- Start with Key Vocabulary of Introducing Range Essentials, Introduction to Introducing Range Essentials, Mode. Each one has its own free lesson, worksheet and quiz.
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- What comes next after Rules and Methods in Introducing Range Essentials?
- Move on to Working with Introducing Range Essentials, Introducing Range Essentials in Examinations, Introducing Range Techniques, Introducing Range Word Problems, which build directly on this idea.
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