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      Lesson details

      Learning outcome

      I can explain what area is.

      Key learning points

      1. Some shapes are better than others to cover the surface and count the area.
      2. The surface of the shape must be covered with no gaps or overlaps; the unit used must tessellate.

      Keywords

      • Polygon - A two-dimensional shape made up of three or more straight lines.

      • Tessellate - A shape tessellates if copies of it can fully cover a space without overlapping.

      Common misconception

      Pupils may well have had recent experience of perimeter. Perimeter and area are easily confused.

      Remind pupils that running their finger around a 2D shape will give the perimeter. Running it inside the shape will give the area.

      Teacher tip

      'Interrupt the forgetting' by giving frequent quickfire opportunities outside the Maths lesson for pupil to use their fingers to show the perimeter and then the area of an object in front of them.

      Licence

      This content is © Oak National Academy Limited (2025), licensed on Open Government Licence version 3.0
      except where otherwise stated. See Oak's terms & conditions
      (Collection 2).

      Lesson video

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      Prior knowledge starter quiz

      6 Questions

      Q1.
      What shape is being described here? A flat shape with 4 straight sides of equal length. Every interior angle is a right angle (90°).

      Circle
      Rectangle
      Correct answer: Square
      Equilateral triangle
      Regular hexagon

      Q2.
      Which of these images shows a polygon?

      Correct Answer: An image in a quiz
      An image in a quiz
      An image in a quiz
      An image in a quiz
      An image in a quiz

      Q3.
      Match the 2D shape with the correct name.

      An image in a quiz
      Correct Answer:a,circle

      circle

      Correct Answer:b,pentagon

      pentagon

      Correct Answer:c,hexagon

      hexagon

      Correct Answer:d,square

      square

      Q4.
      What is the perimeter of the rectangle?

      An image in a quiz
      6 cm
      5 cm
      Correct answer: 10 cm
      30 cm

      Q5.
      What is the perimeter of the square? cm

      An image in a quiz
      Correct Answer: 12, 12.0, 12., twelve, Twelve

      Q6.
      Which of the following shapes would tessellate with itself?

      An image in a quiz
      a
      b
      Correct answer: c
      Correct answer: d

      6 Questions

      Q1.
      Fill in the blank: is the measurement of a flat surface. It measures a 2D space.

      Correct Answer: Area, area

      Q2.
      Which of these shapes is most commonly used for measuring the area of a flat surface?

      An image in a quiz
      a
      b
      c
      Correct answer: d

      Q3.
      Which of these images have an area that can be measured?

      Correct Answer: An image in a quiz
      An image in a quiz
      Correct Answer: An image in a quiz
      An image in a quiz
      An image in a quiz
      Correct Answer: An image in a quiz
      An image in a quiz

      Q4.
      Which 2D shape appears on all six of the faces of this brick and has measurable area?

      An image in a quiz
      Correct Answer: rectangle, rectangle., Rectangle, Rectangle., a rectangle

      Q5.
      Complete the sentence: The shape has an area of just over square units.

      An image in a quiz
      Correct Answer: 15, fifteen, Fifteen, 15., 15.0

      Q6.
      Square units are being used to measure the area of this shape. How many complete square units can be seen in the image?

      An image in a quiz
      Correct Answer: 18, 18., 18.0, eighteen, Eighteen

      To help you plan your 5 maths lesson on: Explain what area is, download all teaching resources for free and adapt to suit your pupils' needs...