Difference between revisions of "Sector of a circle"
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Revision as of 07:04, 7 May 2019
Philosophy of Mathematics |
Concept #10 Sector
Learning objectives
- Slice of a circle enclosed between any two radii is called a sector.
- Semicircle and quadrant are special types of sectors.
Notes for teachers
Activity No # Different sectors of a circle
- Estimated Time : 15 minutes
- Materials/ Resources needed : Laptop, geogebra file, projector and a pointer.
- Prerequisites/Instructions, if any
- The students should know a circle, centre, radius,circumference and a sector.
- They should know that circle is a planar figure.
- Multimedia resources
- Website interactives/ links/ / Geogebra Applets :
- Process:
- Show the geogebra file.
- Move the endpoints of the sector and help them understand the types of sector.
- Developmental Questions:
- Name all the points on the circumference.
- Name the endpoints of the sector.
- Name the major and minor sectors.
- What can you say about the two straight lines of the sector?
- Evaluation
- Name the special types of sector?
- Question Corner
- Give some examples of sector.