Session 35: Conversion of Length
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Session Title |
Conversion of Length |
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Objective |
By the end of this lesson, students will be able to:
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Concept |
Exploring the World of Length Conversions |
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Materials Required |
Chalk, Board, Ruler, Scale, Measuring tapes, Conversion table/ Chart |
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Methodology |
Activity and SEL-based |
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Session Duration |
90 Minutes |
Introduction Activity
Measurement in Motion (20 minutes )
Make students into small groups:-
Ask students to estimate and then measure everyday classroom objects (e.g., a pen, desk, board, bench, floor).
They measure using different units (mm, cm, m) and compare results.
Discuss: Why do we need different units for measurement?
Explain the units of length (10 minutes)
Use hand movements (e.g., small steps for mm, bigger steps for meters) to make it kinesthetic.
Main Topic/ Activity
“What’s the Best Unit?”- Discussion ( 10 minutes)
Objective: Understand when to use different units in real life.
Present scenarios:
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Measuring a road length (km or m?)
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Measuring a pen (cm or mm?)
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Height of a tree (m or cm?)
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Tailor measuring Fabric ( cm or m )
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Doctor measures the height of a child during the check up ( mm or cm)
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Measuring football field ( cm or m )
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Measuring the thickness of a coin ( mm or cm )
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Laying tiles on the floor ( cm or m )
Converting Method (45 minutes)
Display the conversion table and explain relationships (e.g., multiplying/dividing by 10, 100, 1000).
1. Convert 5 meters to centimeters.
2. Convert 200 centimeters to meters.
3. Convert 3 kilometers to meters.
4. Convert 1,500 millimeters to meters.
5. Convert 4.5 meters to millimeters.
Expected Learning Outcome:
Knowledge building-
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Identify different units of Length
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Inquiry based discussion ( why do we convert? )
Skill Building-
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Contextual understanding
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Critical thinking
Review Questions/Assessment/Tasks
Follow up Tasks
Home work: ( 5 minutes )
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The rope is 2.5 meters long. How many centimeters is it?
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A pencil is 140 mm long. Convert it to centimeters.