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30
0.5×10×6.
Class 6 · English Version · Mathematics
Geometry, measurement and trigonometry readiness
Distinguish area, perimeter and volume in labelled drawings.
About this lesson and its coverage
Original Kidemy Class 6 progression. This level has its own text, examples and questions. Curriculum versions share the progression; complete board-specific coverage still needs specification matching and additional material.
Learn the idea
Perimeter measures a boundary. Area counts square units on a surface and volume counts cubic units. A triangle’s height must be perpendicular to its base. Convert dimensions before multiplying.
Worked example
A 6 cm by 4 cm rectangle has perimeter 20 cm and area 24cm². A 2×3×4 cm cuboid has volume 24cm³.
- Identify the quantities and restrictions.
- Show a method with units or symbols.
- Check and explain the result.
Your written practice
Show your working on paper. Check your answer, then choose Next.
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22
2×(8+3).
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60
4×3×5.
Write in your own words. A guardian or teacher should review this response.
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One measures surface coverage and the other boundary length.
Explain square versus linear units.
Write in your own words. A guardian or teacher should review this response.
Show model answer and explanation
200×50=10000cm².
Convert before multiplying.
Progress and browser storage
Notebook challenge, sources and further study
Apply the idea
Draw a plan with real dimensions and calculate two different measures.
Review with a guardian or teacher
- Use the stated evidence or givens.
- Show reasoning rather than only a result.
- Review and explain one correction.
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