Changes
From Karnataka Open Educational Resources
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, 14:43, 21 August 2014
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| | ''[http://karnatakaeducation.org.in/?q=node/305 Click to Comment]''</div> | | ''[http://karnatakaeducation.org.in/?q=node/305 Click to Comment]''</div> |
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| − | ===Activity :Paint and fill the Cylinder ===
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| − | {| style="height:10px; float:right; align:center;"
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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;">
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| − | ''[http://karnatakaeducation.org.in/?q=node/305 Click to Comment]''</div>
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| − | |}
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| − | *Estimated Time: 20 minutes
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| − | *Materials/ Resources needed
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| − | #instrument box
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| − | #Hard paper
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| − | #gum tape
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| − | #paints-green and red
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| − | # brush
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| − | *Prerequisites/Instructions:
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| − | #Students are asked to cut paper into rectangular shape of any length (l) and breadth(b).
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| − | #Students are asked to cut paper into two congruent circles of circumference=length of rectangle(l)
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| − | #Students are asked to make a cylinder using rectangle and two congruent circles.
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| − | #Students are asked to use Red paint for painting single side of rectangle and circles and green for filling cylinder
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| − | *prerequisite knowledge:
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| − | #What is cylinder?
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| − | #Area of cylinder
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| − | #volume of cylinder
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| − | *Multimedia resources
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| − | *Website interactives/ links/ / Geogebra Applets
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| − | *Process:
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| − | #Students are grouped (each group has 4 students). They are asked to calculate the area of rectangle painted and area of circles painted.
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| − | #Students are asked to find out the quantity of green paint used to fill the cylinder.
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| − | * Developmental Questions:
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| − | #which shape the rectangular paper takes when rolled?
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| − | #What is the circumference of the circle?
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| − | #What is the relation between length of rectangle and circumference of the circle?
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| − | #what is the area of rectangle?
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| − | #what is the area of circle?
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| − | *Evaluation
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| − | *Question Corner
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| | ==Concept # 4. Scale drawing== | | ==Concept # 4. Scale drawing== |
