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From Karnataka Open Educational Resources
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Chords of a circle are of different sizes.The length of the chord increases as it moves closer to the centre and decreases as it moves away from the center.[[File:chord001.jpg|200px|right|link=]]
=== Objectives ===
=== Objectives ===
#The chord is a line segment joining any two distinct points on the circle
#The longest chord in any circle is its diameter.
#Any number of chords can be drawn in a circle.
===Estimated Time===
===Estimated Time===
20 minutes.
=== Prerequisites/Instructions, prior preparations, if any ===
=== Prerequisites/Instructions, prior preparations, if any ===
The students should have the knowledge of circle, diameter, circumference and line segment.
Instruct the children to get cut circles ready:
===Materials/ Resources needed===
===Materials/ Resources needed===
Non digital: Circles cut from white paper, colour pencils, scale.
===Process (How to do the activity)===
===Process (How to do the activity)===
# Fold the circle at different points and try to form the smallest and biggest chords.
# What is the difference between the chord and diameter.
What kinds of questions you can ask for that activity
*'''Evaluation''':
# Observe to see if the children are able to fold and mark the chord accurately.
# Name the chord that passes through the center of the circle.
# What happens to the length of the chord as it moves away from the centre?
=== Worksheet ===
[[:File:Circles Worksheet-Chords.odt]]
[[Category:Circles]]
