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From Karnataka Open Educational Resources
→Activity No #1 Size of circle of varying radius using Geogebra
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`http://lasp.colorado.edu/~bagenal/MATH/images/math3fig/circle.gif`
`http://lasp.colorado.edu/~bagenal/MATH/images/math3fig/circle.gif`
−===Activity No #1 Size of circle of varying radius using Geogebra ===
+===Activity No #1 Circle of varying radius using Geogebra ===
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|<div style="width:150px;border:none; border-radius:10px;box-shadow: 5px 5px 5px #888888; background:#f5f5f5; vertical-align:top; text-align:center; padding:5px;">
''[http://www.karnatakaeducation.org.in/?q=node/305 Click to Comment]''</div>
''[http://www.karnatakaeducation.org.in/?q=node/305 Click to Comment]''</div>
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−*Estimated Time
+*Estimated Time: 20 mins
−*Materials/ Resources needed
+*Prerequisites/Instructions, if any
+*Materials/ Resources needed: Laptop, geogebra,projector and a pointer
−*Multimedia resources
+*Prerequisites/Instructions, if any:
+#The students should know a circle
+#They should know the meaning of radius .
+#They should know to measure radius using compass
+#They should know to draw a circle of given radius using compass.
+*Multimedia resources: Laptop
+*Website interactives/ links/ / Geogebra Applets
*Website interactives/ links/ / Geogebra Applets
−*Process/ Developmental Questions
+*Evaluation
+*Process/ Developmental Questions:
−*Question Corner
+#Review the terms plane closed figures, circle and radius.
+#Show them how to measure radius on the compass
+#Show them to draw a circle.
+#Project the geogebra and let them view the changing size of the circle with changing radius.
+# What is a circle ?
+# Which point is the centre of the circle ?
+# What is the radius of this circle ?
+# How do you name the radius ?
+*Evaluation:
+#By what parameter is the size of a circle defined ?
+#Bigger the radius, _____________ is the size of the circle.
+*Question Corner:
+# How do you name a circle ?
+# Can you draw a circle without knowing the radius ?
===Activity No # ===
===Activity No # ===
