Difference between revisions of "Types of triangles based on angles"

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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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A triangle can be drawn with different measures of angles which also determine the kind of triangle formed.
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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)
 
  
 
=== Objectives ===
 
=== Objectives ===
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Content objectives  - what content areas
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Recognize the triangles based on the measures of the sides
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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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20 minutes
  
 
=== Prerequisites/Instructions, prior preparations, if any ===
 
=== Prerequisites/Instructions, prior preparations, if any ===
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Prior knowledge of point, lines, angles, elements of triangle
  
 
===Materials/ Resources needed===
 
===Materials/ Resources needed===
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*Digital : Computer, geogebra application, projector.
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*Non digital : Worksheet and pencil.
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*Geogebra files :  “'''[https://ggbm.at/jwm7nge6 Types of triangle by angle.ggb]'''”
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{{Geogebra|jwm7nge6}}
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===Process (How to do the activity)===
 
===Process (How to do the activity)===
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How to do the different steps of the activity?
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*Identify  the angle types in the triangle.
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*Can  the angles in the triangle be of different type – obtuse or right  angle.
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What kinds of questions you can ask for that activity
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*Establish  the types of triangles based on the types of angles that form the  triangle – when  all angles are acute angles,  when  one  of the angle is a right  angle and when  one of the angle is  obtuse angle.
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*Is  it possible to have a triangle with two right angle or two obtuse  angle. Why or why not?
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What are the student follow-up activities/ questions you can give?
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*What kind of a triangle is formed when all the angles are equal? For  what measure of the angle such a triangle is formed?
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*Can  a triangle be formed with a reflex angle.
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Categories:  (Subject) (Topic) (Sub-concept/topic) (Class 6) (Resource format)
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*Measure  the angles for different triangle, recognize the types of angles  and conclude the type of triangle.
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{| class="wikitable"
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!Observation
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!Angle 1 measure and
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its Type
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!Angle 2 measure and
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its Type
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!Angle 3 measure and
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its Type
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!What can you say about angles?
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!Type of triangle formed
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|-
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|Triangle 1
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|
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|
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|
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|
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|
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|-
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|Triangle 2
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|
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|
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|
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|
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|
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|-
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|Triangle 3
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|
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|
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|
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|
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|
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|}
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'''Evaluation at the end of the activity'''
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*Are children able to recognize the types of triangles based on the angles in a triangle.
  
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Example -  (Mathematics) (Triangle) (Area) (Perimeter) (Class 6) (Class 8) (Geogebra) (Video)
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[[Category:Triangles]]
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[[Category:Class 8]]
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[[Category:Classroom activities]]

Latest revision as of 10:35, 26 April 2019

A triangle can be drawn with different measures of angles which also determine the kind of triangle formed.

Objectives

Recognize the triangles based on the measures of the sides

Estimated Time

20 minutes

Prerequisites/Instructions, prior preparations, if any

Prior knowledge of point, lines, angles, elements of triangle

Materials/ Resources needed


Download this geogebra file from this link.


Process (How to do the activity)

  • Identify the angle types in the triangle.
  • Can the angles in the triangle be of different type – obtuse or right angle.
  • Establish the types of triangles based on the types of angles that form the triangle – when all angles are acute angles, when one of the angle is a right angle and when one of the angle is obtuse angle.
  • Is it possible to have a triangle with two right angle or two obtuse angle. Why or why not?
  • What kind of a triangle is formed when all the angles are equal? For what measure of the angle such a triangle is formed?
  • Can a triangle be formed with a reflex angle.
  • Measure the angles for different triangle, recognize the types of angles and conclude the type of triangle.
Observation Angle 1 measure and

its Type

Angle 2 measure and

its Type

Angle 3 measure and

its Type

What can you say about angles? Type of triangle formed
Triangle 1
Triangle 2
Triangle 3

Evaluation at the end of the activity

  • Are children able to recognize the types of triangles based on the angles in a triangle.
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