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From Karnataka Open Educational Resources
Medians and centroid of a triangle (view source)
Revision as of 07:04, 5 November 2019
, 07:04, 5 November 2019added Category:Triangles using HotCat
The centroid of a triangle is where the three medians intersect. This activity will show you how to find the centroid and you’ll explore several geometric relationships related to centroid and medians.
=== Objectives ===
=== Objectives ===
To introduce medians of a triangle and their point of concurrence.
===Estimated Time===
===Estimated Time===
30 minutes
=== Prerequisites/Instructions, prior preparations, if any ===
=== Prerequisites/Instructions, prior preparations, if any ===
Types of triangles, their medians and their constructions should have been covered.
===Materials/ Resources needed===
===Materials/ Resources needed===
* Digital : Computer, geogebra application, projector.
* Non digital : Worksheet and pencil.
* Geogebra files : [https://ggbm.at/yz2rtbth Concurrency of medians.ggb]
{{Geogebra|yz2rtbth}}
===Process (How to do the activity)===
===Process (How to do the activity)===
How to do the different steps of the activity?
#The teacher can use this geogebra file to show how the position of centriod is constant in different triangles.
*Developmental Questions:
What kinds of questions you can ask for that activity
#Which type of triangle is this ?
#What is a median ?
What are the student follow-up activities/ questions you can give?
#How do you identify the midpoint of the side ?
#Which is the point of concurrency of medians of the triangle ?
#Identify the position in different triangles.
*Evaluation:
#What is the position of centriod in different triangles ?
*Question Corner:
#Why do you think the centriod always remains in the centre for every type of triangle ?
#What does the centriod indicate ?
#What are the practical applications of the centriod ?
[[Category:Triangles]]
