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Area of Rectangle and Square

Mathematics Grade 4 Difficulty 2/5

Beginning of the lesson

Understanding Area Formulas for Rectangles and Squares

What is Area Again?

Remember that area is the amount of space inside a flat shape. We measure it in square units like square centimeters (cm²) or square meters (m²).

Important: Area is different from perimeter! Perimeter is the distance around a shape, while area is the space inside it.
AREA(inside space)Perimeter(around edge)

From Counting Squares to Using Formulas

You already know how to find area by counting square units. But what if we have a really big rectangle? Counting hundreds of squares would take forever! That's why we use formulas.

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In the full lesson

  • The complete explanation
  • Worked examples
  • Common mistakes and how to avoid them
  • Test questions: 64
  • AI tutor that answers questions about the topic
  • Progress tracking for students, parents and teachers