Select three-dimensional shapes
key notes:
🌍 What are 3D Shapes?
- 3D shapes are solid shapes.
- They have length, width, and height.
- We can hold and touch them.
🔷 Common 3D Shapes
- Cube → like a dice 🎲
- Sphere → like a ball ⚽
- Cone → like an ice cream 🍦
- Cylinder → like a can 🥫
- Cuboid → like a box 📦
🔍 How to Select 3D Shapes
Look for shapes that are not flat.
Check if the shape has depth (thickness).
Ask: “Can I hold it?” 🤔
- YES → 3D shape
- NO → Not 3D
🧠 Features of 3D Shapes
- Faces → flat surfaces
- Edges → where two faces meet
- Vertices → corners
🏠 3D Shapes in Real Life
- Ball → Sphere
- Dice → Cube
- Ice cream cone → Cone
- Water bottle → Cylinder
- Book → Cuboid
🎯 Tips for Students
- Touch and feel objects around you 👍
- Compare flat (2D) vs solid (3D) shapes
- Practice by sorting objects into 3D and not 3D
🎉 Fun Activity
Collect objects from home 🏠
Group them into:
- 3D shapes
- Not 3D shapes
Learn with example
Which shape is a cylinder?
look at the shapes one by one to find the cylinder.
This shape has 6 faces. All the faces are squares.
This shape is a cube. it is not a cylinder.
This shape has two faces.
They are both circles. the rest of the shape is curved.
This shape is a cylinder.
Which shape is a cone?
Look at the shapes one by one to find the cone.
This shape has a pointy tip.
It has one circle as a face. The rest of the shape is curved.
This shape is a cone.
This shape is completely round. It has no flat surfaces.
This shape is a sphere. It is not a cone.
let’s practice! 🖊️
