Sector of a circle

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Concept #1 CIRCLE CENTRE

Learning objectives

  1. Define circle
  2. give examples for circles
  3. Locate centre for the given circle.

Notes for teachers

Define circle and centre with the help of a diagram

Activity No # 1 To locate centres for circles

  • Estimated Time

20 minutes

  • Materials/ Resources needed

For the teacher: chalk piece, geometry set.
for the student: paper

  • Prerequisites/Instructions, if any

Instructions for the teacher: Draw few circles of different radii and name the centres
Instructions for the student : name the centres of different circles

  • Multimedia resources
  • Website interactives/ links/ / Geogebra Applets
  • Process/ Developmental Questions

Identify the centre.

  • Evaluation
  1. How many centres does a circle has?
  2. Where does the centre of the circle lie? (inside/outside)
  • Question Corner

Is there a circle with 3/4/5 centres?

Activity No # 2

  • Estimated Time
  • Materials/ Resources needed
  • Prerequisites/Instructions, if any
  • Multimedia resources
  • Website interactives/ links/ / Geogebra Applets
  • Process/ Developmental Questions
  • Evaluation
  • Question Corner

Concept #

Learning objectives

Notes for teachers

Activity No #

  • Estimated Time
  • Materials/ Resources needed
  • Prerequisites/Instructions, if any
  • Multimedia resources
  • Website interactives/ links/ / Geogebra Applets
  • Process/ Developmental Questions
  • Evaluation
  • Question Corner

Activity No #

  • Estimated Time
  • Materials/ Resources needed
  • Prerequisites/Instructions, if any
  • Multimedia resources
  • Website interactives/ links/ / Geogebra Applets
  • Process/ Developmental Questions
  • Evaluation
  • Question Corner


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