Hi! I'm Vidi. Let's learn Area (Counting Squares) together — read with me, then play the games to win a ⭐!
🔵Measure Area by Counting Unit Squares
Area is the amount of flat surface inside a shape, measured in square units (e.g., cm², m²).
To find area:
- Count the unit squares that fit inside the shape
- For rectangles: Area = Length x Width
👀 See a worked example
Rectangle 4 cm x 3 cm. Find the area.
Area = 4 x 3 = 12 cm². Count: 4 columns x 3 rows = 12 unit squares.
Square with side 5 cm. Find the area.
Area = 5 x 5 = 25 cm². 5 rows of 5 squares.
An irregular shape made of 8 full squares and 2 half-squares. Find the area.
Area = 8 + (2 x 0.5) = 8 + 1 = 9 cm².
🤖 Vidi's Key Points
- Area = number of unit squares inside a shape.
- Rectangle: Area = Length x Width.
- Units for area: cm², m², square units.
🟢Compare Area of Two Shapes
To compare areas:
- Calculate each shape's area using Length x Width (or count squares)
- Compare the numbers
- Larger area = more space inside
Two shapes with the same area can look very different!
👀 See a worked example
Which has larger area: a 3x5 rectangle or a 4x4 square?
Rectangle: 3x5=15 cm². Square: 4x4=16 cm². 16 > 15, so the square has larger area.
Compare shapes: one 2x6 (12 cm²), another 3x5 (15 cm²).
3x5=15 cm² > 2x6=12 cm². The 3x5 shape has larger area.
Two shapes both have area 24 cm². Can they look different?
Yes! A 4x6 rectangle and a 3x8 rectangle both have area 24 cm² but look completely different.
🤖 Vidi's Key Points
- Calculate each area, then compare the numbers.
- Larger number = more area.
- Same area does not mean same shape — different dimensions can give same area.
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