Difference between revisions of "Angle sum property of a Triangle"
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=== Process (How to do the activity) === | === Process (How to do the activity) === | ||
{{Geogebra|xbwbcdgn}} | {{Geogebra|xbwbcdgn}} | ||
| + | * Students should be able to recognize the corresponding angles formed when the parallel line is drawn. | ||
| + | * Students should be able to recognize the alternate angles formed. Is the alternate angle same as one of the angles of the triangle. | ||
| + | ** Ask students what happens when the three angles of the triangle are placed adjacent to each other. | ||
| + | ** What can you say about the line drawn? | ||
| + | ** Is it parallel to one of the sides? | ||
| + | ** What can you say about the pairs of angles – look at the matching colors. | ||
| + | ** Once the parallel line reaches the vertex, how many angles are formed? | ||
| + | ** Students should be able to identify the two angles moving are corresponding angles as the line moving is parallel to one of the sides. | ||
| + | ** Students can see that when the three angles of the triangle are placed adjacent to each other they form a straight line. | ||
=== Evaluation at the end of the activity === | === Evaluation at the end of the activity === | ||
Go back to the page - [[KVS Triangles|click here]] | Go back to the page - [[KVS Triangles|click here]] | ||
Revision as of 17:32, 6 September 2020
Objectives
Estimated Time
Prerequisites/Instructions, prior preparations, if any
Materials/ Resources needed
Click here to open the file
Process (How to do the activity)
Download this geogebra file from this link.
- Students should be able to recognize the corresponding angles formed when the parallel line is drawn.
- Students should be able to recognize the alternate angles formed. Is the alternate angle same as one of the angles of the triangle.
- Ask students what happens when the three angles of the triangle are placed adjacent to each other.
- What can you say about the line drawn?
- Is it parallel to one of the sides?
- What can you say about the pairs of angles – look at the matching colors.
- Once the parallel line reaches the vertex, how many angles are formed?
- Students should be able to identify the two angles moving are corresponding angles as the line moving is parallel to one of the sides.
- Students can see that when the three angles of the triangle are placed adjacent to each other they form a straight line.
Evaluation at the end of the activity
Go back to the page - click here