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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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− | ''[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== |