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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, parallel lines
Prior knowledge of point, lines, angles, parallel lines
===Materials/ Resources needed===
===Materials/ Resources needed===
*Digital : Computer, geogebra application, projector.
*Digital : Computer, Geogebra application, projector.
*Non digital : Worksheet and pencil,6-8 strings (preferably in different colours)
*Non digital : Worksheet and pencil,6-8 strings (preferably in different colours)
*Geogebra files : '''“[https://www.geogebra.org/m/bwsvgqqg#material/hyecxd9u Elements of a triangle.ggb]”'''
*Geogebra files : '''“[https://www.geogebra.org/m/bwsvgqqg#material/hyecxd9u Elements of a triangle.ggb]”'''
===Process (How to do the activity)===
===Process (How to do the activity)===
*Students work individually but in their groups.
*-----Students work individually but in their groups.
*Take the strings and place them in such a way as to make a closed figure.
*Take the strings and place them in such a way as to make a closed figure.
*What is the smallest number of strings with which you can form a closed figure?
*What is the smallest number of strings with which you can form a closed figure?
*When you drew, what did you draw? (Was it a line or was it an angle or was it a line segment?). It is a lime segment – how many line segments are there?
*When you drew, what did you draw? (Was it a line or was it an angle or was it a line segment?). It is a lime segment – how many line segments are there?
*When two line segments joined, what is it called? (A vertex). How many vertices are there?
*When two line segments joined, what is it called? (A vertex). How many vertices are there?
*Is there any angle formed when you made this figure? How many angles were formed?
*Is there any angle formed when you made this figure? How many angles were formed? How many angles lie within the closed figure?
*Show a simple Geogebra file with triangles – Use this file to demonstrate that every triangle has the elements - vertices, sides and angles
*Show a simple Geogebra file with triangles – Use this file to demonstrate that every triangle has the elements - vertices, sides and angles
*How many triangles were formed? Were there any strings left over?
*How many triangles were formed? Were there any strings left over?