Thursday, October 14, 2010

Lesson Plan: Surface of Prisms (Grade 8)



What to do
How long
Materials
Bridge
Show prisms. Define what a prism is. Pose problem of how much paint, chocolate or gold it would take to cover.  What dimension do we need?  Intro to Surface Area and why you might need it.

≈ 2 minute
3 large unfoldable
prisms (rectangular, circular, triangular)
L. Objective
The learners will be able to understand the basic formulas of rectangular, circular and triangular prisms and be able to calculate the surface of them.



T. Objective
Give clear instructions and arrange engaging activities.



Pre-test
Review measurements of area.  

≈ 2 minss

Participatory
Unfold the rectangular prism and explain the surface area of it.
Write the formula on board.
Do the same for circular and triangular prisms.
Let each group build a structure using the wooden blocks.
Let the students come up with their own formula for the surface area of their structure.

≈ 8 mins
wooden blocks in shapes of  rectangular, circular, and triangular prisms.
Post-test
Let one group demonstrate in front of the class.

≈ 2 mins

Summary
Check the answers of each group.

≈ 1 mins

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