Age:
6 years old
Aims:
To compose and decompose numbers.
To identify and give examples of diferent representations for the same number.
To understand and be able to use some properties of the natural numbers.
To analyse mathematically, formulating and testing conjectures, processes and ideas explaining and justifying results
To understand and memorize basic facts of addion.
To develop reasoning and mathematical communication;
To communicate orally and in writing, using natural and mathematical language, interpreting, expressing and discussing results, processes and mathematical ideas.
Materials:
bottle lids, sheet of paper, colour pens and light cardboard.
Introduction:
Oral explanation of the task - 10 minutes
Put pupils into pairs
Clarification of some main concepts/ main questions to be made : |
- What is important to find out?
- How many terms will be used to decompose each number?
- How many ways can each number be split up?
- Is it possible that two pairs decompose the same number and get the same results?
- What is observed in pairs that decompose larger numbers?
- Does this activity have only one solution?
Exploration of the task carried out by the pupils – 20 min. – pair work
Discussion of the task – 40 min – large group / class
Conclusions – 10 min. – large group / class |
Main part:
- Presentation: Slips of paper with the registration of the results after throwing - Discussion of the task in large group
- Contents systematization
Roundup:
- Pupils should solve the task autonomously but under the supervision of the teacher.
-Thus, students will be the builders of their own learning since they are responsible for the acquisition of knowledge.
- Pupils can easily solve out this activity and the conclusions that they achieve allow them to acquire some knowledge of the main mathematics issues.
- Clarification of some main concepts/ main questions to be made :
- There are many different and varied ways to decompose the numbers.
- The ways found are always one more in relation to the number being explored.The number 6, for example, can be split 7 ways. The number 7, 8 ways, and the number 8, 9 ways.
- Pupils must write down all results in a methodical manner to ensure no decompositions are omitted.
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