Mathematics

CURRICULUM FOCUS

We are learning to use a scale to enlarge two dimensional shapes.

VOCABULARY

Enlargement is when you make a shape bigger. You keep the shape the same, but you just increase its size. To do this, you use a number called a scale factor to decide how much bigger the shape will be.

Key Ideas About Enlargement:

1. Scale Factor:
   This is the number that tells you how much bigger (or smaller) to make the shape.
   • If the scale factor is 2, the shape gets twice as big.
   • If the scale factor is 3, the shape gets three times as big.
   • If the scale factor is 0.5, the shape gets half as big.
      
2. Centre of Enlargement:
   This is a point where everything in the shape moves away from. It's like the starting point for enlarging the shape.
   Often, the centre is at the origin (0, 0), but it can be anywhere.

ACTIVITIES YOU CAN DO AT HOME TO SUPPORT YOUR CHILD'S LEARNING

Enlarge Shapes in Nature or Everyday Objects

Materials Needed: Camera or phone, paper, pencil

Activity:

• Go around the house or outside and find objects that resemble geometric shapes (e.g., a square window, a circular plate, a triangular roof).
• Take a picture of the shape, and then enlarge the shape on paper by sketching it in a larger size.
• This can help students make connections between math and real-world geometry