Class 3 Maths - WEST-BENGAL
Filling and Lifting
The chapter Filling and Lifting in Class 3 Mathematics introduces West Bengal (WBBSE) students to the fundamental concepts of volume, capacity, and measurement of liquids. Children learn to compare containers by observing how much liquid they can hold, using terms like more, less, full, and empty. They explore standard and non-standard units for measuring liquids, such as buckets, jugs, glasses, litres, and millilitres. This chapter matters for board exams because it builds practical life skills and forms the foundation for solving word problems related to addition, subtraction, and unit conversion of capacities in higher grades.
Start Learning FreeKey Concepts
Capacity
Capacity is the total amount of liquid that a container can hold when it is completely full.
Standard Units of Measurement
Litres (l) and millilitres (ml) are standard units used to measure the volume of liquids accurately everywhere.
Non-Standard Units
Using cups, glasses, mugs, or bowls to measure how much liquid a bigger container holds.
Comparing Volumes
Comparing different containers to find out which one holds more liquid and which one holds less.
Unit Conversion
Understanding that 1 litre is equal to 1000 millilitres to change from one unit to another.
Important Formulas
Board Exam Info
In the West Bengal (WBBSE) Class 3 Mathematics examinations, this chapter typically carries around 5 to 8 marks. Common question types include fill-in-the-blanks about units, choosing the correct measuring vessel, comparing capacities, and simple word problems involving addition and subtraction of litres and millilitres.
Frequently Asked Questions
What is the difference between litre and millilitre?
A litre is used to measure large amounts of liquids like water in a bucket, while a millilitre is used for small amounts like cough syrup in a spoon.
How many millilitres make one litre?
1000 millilitres make one complete litre.
Why do we use standard units like litres instead of cups?
Cups can be of different sizes, which makes measurement confusing. Standard units like litres give the exact same measurement everywhere.
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