Difference between revisions of "Types of triangles based on angles"
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=== Objectives === | === Objectives === | ||
− | + | Recognize the triangles based on the measures of the sides | |
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===Estimated Time=== | ===Estimated Time=== | ||
=== Prerequisites/Instructions, prior preparations, if any === | === Prerequisites/Instructions, prior preparations, if any === | ||
+ | Prior knowledge of point, lines, angles, elements of triangle | ||
===Materials/ Resources needed=== | ===Materials/ Resources needed=== | ||
+ | *Digital : Computer, geogebra application, projector. | ||
+ | *Non digital : Worksheet and pencil. | ||
+ | *Geogebra files : “'''[https://ggbm.at/g9h76xu3 6. Types of triangle by angle.ggb]'''” | ||
===Process (How to do the activity)=== | ===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. | |
− | What | + | *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 | + | *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. | |
− | + | {| class="wikitable" | |
− | + | !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 | ||
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+ | |- | ||
+ | |Triangle 2 | ||
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+ | |- | ||
+ | |Triangle 3 | ||
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+ | |} | ||
+ | '''Evaluation at the end of the activity''' | ||
+ | *Are children able to recognize the types of triangles based on the angles in a triangle. |
Revision as of 05:21, 12 April 2019
Objectives
Recognize the triangles based on the measures of the sides
Estimated Time
Prerequisites/Instructions, prior preparations, if any
Prior knowledge of point, lines, angles, elements of triangle
Materials/ Resources needed
- Digital : Computer, geogebra application, projector.
- Non digital : Worksheet and pencil.
- Geogebra files : “6. Types of triangle by angle.ggb”
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.