Difference between revisions of "Chord of a circle"

Revision as of 11:48, 7 May 2019

Explain the concept by drawing chords of different sizes.
Make the students understand that the length of the chord increases as it moves closer to the centre and decreases as it moves away from the center.

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

20 minutes.

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

Circles cut from white paper, colour pencils, scale.

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.

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?

@@ Line 1: / Line 1: @@
-===Name of the activity===
+#Explain the concept by drawing chords of different sizes.
-Brief blurb describing what the activity.  If this has been borrowed from some external web site (for example, a non OER or OER site which had this idea and based on which the activity was developed)
+#Make the students understand that 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=http://karnatakaeducation.org.in/KOER/en/index.php/File:Chord001.jpg]]
 === Objectives ===
-Content objectives  - what content areas
+#The chord is a line segment joining any two distinct points on the circle
+#The longest chord in any circle is its diameter.
-Skill objectives - what specific skills
+#Any number of chords can be drawn in a circle.
-Classroom objectives - to demo peer learning, to make a classroom resource, etc -
-All these kinds of objectives need not be there for every activity.  And no need to list them as different headings.  This is only for our reference when we are developing activities.
 ===Estimated Time===
+minutes.
 === 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===
+Circles cut from white paper, colour pencils, scale.
 ===Process (How to do the activity)===
-How to do the different steps of 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.
-What are the student follow-up activities/ questions you can give?
+# 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?
-Categories:  (Subject) (Topic) (Sub-concept/topic) (Class 6) (Resource format)
-Example -  (Mathematics) (Triangle) (Area) (Perimeter) (Class 6) (Class 8) (Geogebra) (Video)