Lesson 17 · Solid Objects

Solid Objects Presentation

MathematicsSubject
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Mathematics Class 6 · Unit 17

Solid Objects

Faces, edges, vertices · Cube and cuboid · Cylinder, sphere, cone

What we learn today

📦

Name the faces, edges and vertices of a solid.

🔢

Count all three on a cube and a cuboid.

🧮

Use the relation \( V - E + F = 2 \).

⚽

Tell a cylinder, a sphere and a cone apart.

Plane shape and solid object

📄Plane shape
Length and breadth only
Can be drawn on paper
Square, rectangle, circle
VS
🧊Solid object
Length, breadth and height
Can be held in the hand
Cube, cuboid, sphere

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Presenter notes: Open by holding up a chalk box, a dice and a ball. Tell the class that all three are solid objects and that today we learn to describe them.