Difference between revisions of "Angular bisectors and incenter of a triangle"

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(Created page with "===Name of the activity=== Brief blurb describing what the activity. If this has been borrowed from some external web site (for example, a non OER or OER site which had this...")
 
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===Name of the activity===
 
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Brief blurb describing what the activity.  If this has been borrowed from some external web site (for example, a non OER or OER site which had this idea and based on which the activity was developed)
 
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=== Objectives ===
 
=== Objectives ===
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Content objectives  - what content areas
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Introduce angular bisectors in a triangle
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Skill objectives - what specific skills
 
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Classroom objectives - to demo peer learning, to make a classroom resource, etc -
 
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All these kinds of objectives need not be there for every activity.  And no need to list them as different headings.  This is only for our reference when we are developing activities.
 
  
 
===Estimated Time===
 
===Estimated Time===
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40 minutes.
  
 
=== Prerequisites/Instructions, prior preparations, if any ===
 
=== Prerequisites/Instructions, prior preparations, if any ===
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Angles, angle bisectors , concurrent lines and triangles should have been covered.
  
 
===Materials/ Resources needed===
 
===Materials/ Resources needed===
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===Process (How to do the activity)===
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Digital resources: Laptop, projector and a pointer.
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How to do the different steps of the activity?
 
  
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What kinds of questions you can ask for that activity
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Geogebra file: This geogebra file was done  by ITfC-Edu-Team.
  
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What are the student follow-up activities/ questions you can give?
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===Process (How to do the activity)===
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#The teacher can use this geogebra file and ask the questions listed below.
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Categories: (Subject) (Topic) (Sub-concept/topic) (Class 6) (Resource format)
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*Developmental Questions;
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#What type of triangle is this ? Why ?
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Example -  (Mathematics) (Triangle) (Area) (Perimeter) (Class 6) (Class 8) (Geogebra) (Video)
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#Identify the three angles.
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#What is an angle bisector ?
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#Identify the point of concurrence of angle bisectors ?
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#This point, called incentre of the triangle does its position change with the type of triangle ?
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#Identify the circle. What is its radius ? What can this radius be called ?
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#What is this circle called ?
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*Evaluation:
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#What is incentre, inradius and incircle ?
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*Question Corner:
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#What do you think would be the practical applications of the incentre and incircle ?

Revision as of 07:15, 29 April 2019

Objectives

Introduce angular bisectors in a triangle

Estimated Time

40 minutes.

Prerequisites/Instructions, prior preparations, if any

Angles, angle bisectors , concurrent lines and triangles should have been covered.

Materials/ Resources needed

Digital resources: Laptop, projector and a pointer.

Geogebra file: This geogebra file was done by ITfC-Edu-Team.

Process (How to do the activity)

  1. The teacher can use this geogebra file and ask the questions listed below.
  • Developmental Questions;
  1. What type of triangle is this ? Why ?
  2. Identify the three angles.
  3. What is an angle bisector ?
  4. Identify the point of concurrence of angle bisectors ?
  5. This point, called incentre of the triangle does its position change with the type of triangle ?
  6. Identify the circle. What is its radius ? What can this radius be called ?
  7. What is this circle called ?
  • Evaluation:
  1. What is incentre, inradius and incircle ?
  • Question Corner:
  1. What do you think would be the practical applications of the incentre and incircle ?
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