Objectives for this lesson:
1.
Given numerical conversion problems, students will correctly convert linear measures between millimetres, centimetres, and metres with at least 80% accuracy.
2.
Given real-life measurement scenarios, students will solve word problems involving linear conversions with at least 80% accuracy.
3.
Given demonstration videos for guided practice students will demonstrate the correct procedure for converting lengths with 80% accuracy..
4.
During group problem-solving tasks, students will show confidence and persistence when solving linear conversions by actively participating and attempting all assigned activities.
Important terms to remember
Standard Units
Standard units are official units of measurement that everyone uses so measurements are fair and the same everywhere.
Standard units are the real measuring units we all agree to use, so everyone gets the same answer.
👉 Example:
Using centimetres to measure a pencil instead of guessing with fingers.
🧠 Think:
“Everyone measures the same way.”
Metre (m)
A metre is a standard unit used to measure long lengths or distances.
A metre is used to measure big lengths, like the length of a classroom or a rope.
👉 Example:
A door is about 2 metres tall.
🧠 Think:
“Metre measures big lengths.”
Centimetre (cm)
A centimetre is a standard unit used to measure shorter lengths.
A centimetre is used to measure small things, like a pencil or book.
👉 Example:
A pencil might be 15 cm long.
🧠 Think:
“Centimetre measures small lengths.”
Millimetre (mm)
A millimetre is a very small standard unit used to measure tiny lengths.
A millimetre measures very tiny things, like the thickness of a coin or paper.
👉 Example:
A coin is about 2 mm thick.
🧠 Think:
“Millimetre measures tiny lengths.”
Watch this Video!
Group Activity
How to work together:
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Work in groups of three.
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Talk about each problem before writing the answer.
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One person types, another checks, and another explains the steps.
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Show working for every question.
