Difference between revisions of "Semicircle"
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Latest revision as of 11:25, 7 November 2019
Partitioning a circle into two halves to form semicircles by drawing diameter.
Objectives
- A diameter divides the circle into two equal halves and each such half is a semicircle or hemicircle.
- Forming a semicircle by joining any two points on the circumference through its centre i.e. by drawing a diameter.
Estimated Time
10 minutes
Prerequisites/Instructions, prior preparations, if any
Circle and diameter should have been introduced.
Ask children the previous day to cut circles of given radius and bring.
Materials/ Resources needed
Non digital: White paper, compass and colour pencils
Process (How to do the activity)
- Bring cut circles of different sizes.
- Fold them into exact halves.
- Recognise semicircles. Let them colour each half with different colour.
- Identify the centre, circumference, diameter and semicircle of the circle.
- Fold circle into exact half.
- Draw diameter on folded line and colour each half with different colour.
- Evaluation
- Were the students able to draw and cut perfect circles?
- Was the folded line (diameter) passing through the center of circle?
- In how many different ways can you draw semicircles for a given circle?