Understanding Nets and 3D Figures
What is a Net?
A net is a flat pattern that can be folded to make a three-dimensional (3D) solid. Think of it like unwrapping a present box and laying all the sides flat on a table!
From Flat to 3D
Imagine you have a cardboard box. If you carefully cut along some edges and unfold it completely flat, you get a net. When you fold it back up, you get your 3D box again!
Key Ideas:
- A net is a 2D (flat) shape
- When folded, it becomes a 3D (solid) shape
- The same 3D shape can have different nets
- Each face of the 3D shape appears once in the net
Understanding Cubes
A cube is a special 3D shape where:
- It has 6 faces (all squares)
- All faces are the same size
- It has 12 edges (all the same length)
- It has 8 vertices (corners)
Real-World Examples:
Dice, Rubik's Cube, ice cubes, square gift boxes
Dice, Rubik's Cube, ice cubes, square gift boxes