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Line 10: + + + + + + − ===Materials/ Resources needed=== − How to do the different steps of the activity?+ − + − + − + − + − + − Categories: (Subject) (Topic) (Sub-concept/topic) (Class 6) (Resource format)+ − + − Example - (Mathematics) (Triangle) (Area) (Perimeter) (Class 6) (Class 8) (Geogebra) (Video)+ + + + + + + + +
no edit summary
===Estimated Time===
===Estimated Time===
40 minutes.
=== Prerequisites/Instructions, prior preparations, if any ===
=== Prerequisites/Instructions, prior preparations, if any ===
#The cylinder is a 3 dimensional solid having curved lateral surface with two circular surfaces on either sides.
#Basics of circle and rectangle.
#Formula to find the area of a circle and a rectangle.
===Materials/ Resources needed===
Digital: Laptop, internet link, projector and a pointer.
===Process (How to do the activity)===
===Process (How to do the activity)===
#The teacher can initially discuss about cylinder as a shape and explain its parts.
#She can then talk about what area means.
What kinds of questions you can ask for that activity
#Discuss regarding surfaces to be covered in deriving the formula for surface area of the cylinder.
#Project the video and discuss.
What are the student follow-up activities/ questions you can give?
Developmental Questions:
#Can youn identify the shapes of the open cylinder?
#What is the radius of the circle ?
#What is the formula to find the circumference of the circle.
#Into what shape does the curved surface of the cylinder opens ?
#What are the measures of height and breadth of the rectangle?
#What is the formula to find the area of the rectangle ?
*Evaluation:
#Can you explain the conversion of circumference of the circle into the length of the rectangle ?
*Question Corner:
#What is the difference between lateral and total surface area ?
#What are the formulae for lateral surface area and total surface area ?
#Name a few situations wherin one may have to find only the lateral surface area of the cylindrical object ?