Introduction
Welcome my lovely students! in this web we will talk about the three types of triangles (Acute, Obtuse, Right) dont forget to check the vedio down.
[video:https://youtu.be/AEpHfWFcfuw]
Task
My obejective is :
- Classify triangles by angles.
Vocabulary :
- Triangle
- Acute Triangle
- Right Triangle
- Obtuse Triangle
- Here a vedio shows how to differnet between them.
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- [video:https://youtu.be/kQETZgv04BI]
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- dont forget to do the game as well.
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http://www.math-play.com/classifying-triangles/Triangles-Drag-and-Drop-Game.html
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- please be sure my lovely students to answer these sheets.
Process
1-Acute Triangles
A triangle in which all three angles
are less than 90°.
- do the practice to see if you understand or not
https://www.ixl.com/math/grade-3/acute-obtuse-and-right-triangles
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2-Obtuse Triangles
An obtuse triangle is a triangle in which one of the angles is greater than 90°.
- do the practice to see if you understand or not
http://www.softschools.com/quiz_time/math/geometry/theme1.html
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3-Right Triangles
A right triangle is triangle with an angle of 90°.
- do the practice to see if you understand or not