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From Karnataka Open Educational Resources
Volume of a cuboid using unit cubes (view source)
Revision as of 06:26, 24 May 2019
, 06:26, 24 May 2019no edit summary
===Estimated Time===
===Estimated Time===
40 minutes
=== Prerequisites/Instructions, prior preparations, if any ===
=== Prerequisites/Instructions, prior preparations, if any ===
#A cuboid and its properties should have been done.
#A rectangle and formula to find its area.
#A unit cube is a cube with side 1 unit.
===Materials/ Resources needed===
===Materials/ Resources needed===
Digital: Laptop, geogebra file, projector and a pointer
This geogebra file has been taken from : www.geogebratube.org
===Process (How to do the activity)===
*Process:
#The teacher can discuss about a cuboid and its attributes - the length , width and height parameters.
#Discuss about the concept of volume.
#Discuss about a cube of side 1 unit.
#Find the volume of 1 unit cube using volume formula ( lxbxh).
#Also to reiterate the volume of 1 unit cube, the teacher can (if need be) drop it in a measuring jar having water. The water displaced would be 1 cubic cm indicating the volume of 1 unit cube is 1 cubic cm.
#By finding out the capacity of a cuboid to hold number of such 1 unit cubes, the volume can be determined.
#Next she can proceed further by reiterating that the number of 1 unit cubes would be l x b x h which would again be the volume of the cuboid.
*Developmental Questions:
#What is the shape of the outer figure ?
#What shape is each small inner solid ?
#What is the measure of each small cube ?
#What is the formula to find the volume of a cube ?
#How many 1 unit cubes can be fitted in 1 row ?
#How many such rows are there in the cuboid ?
#What is the total number of unit cubes in the cuboid ?
#What does this number depict ?
#How can one determine the volume of a cuboid ?
*Evaluation:
#Were the students able to comprehend the use of 1 unit cubes in finding the volume of cuboid ?
*Question Corner:
#Can volume of other solids be found using similar anology ?
