| Activity Outcome | Approximating and calculating with large whole numbers. Measurement |
| MTS Set | MTS6
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| NATIONAL Curriculum | The Number System |
| Topics | Understand Whole Numbers
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| Keywords | Strategies, Large Numbers, Integers |
| Grouping | Independent and learning pairs |
| Resources | As selected by students. |
| Lesson Notes | - Ask students to choose a problem they would like to investigate (ensure there is a balance of students working on each problem).
- Students develop and describe strategies for solving their problem using estimates and mental computation.
- Students meet with a partner who has worked on the same problem.
- In pairs students decide on the best strategy for making an efficient and reasonably accurate mental estimate of the large number answer.
- Students check and verify their work.
- Students report on their findings and strategy to the whole class.
- For example, all pairs who have solved question 1 go to the front of the room. The other students register a quick guestimate for question 1. The pairs then share their strategies and solutions with the class. The listeners assist in determining which pair or pairs have the best strategy. Repeat for other questions.
- Encourage listeners to question reporters about their process and solutions
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| Reflections | Ask: Can you think of a problem you solved recently where you have used mathematics that you have learned at school?
(Not a problem given to you by a teacher)
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| Internet Links | |
| Answers | Answers will vary |
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