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      Identify equal parts in a whole when they do not look the same in 2D shapes

      Lesson details

      Learning outcome

      I can identify equal parts in a whole when they do not look the same in 2D shapes.

      Key learning points

      1. Equal parts may not look the same
      2. The whole has been divided into __ equal parts
      3. One equal part is shaded so each equal part is __ of the whole

      Keywords

      • Whole - The whole is all of a group or number.

      • Part - A part is a section of the whole.

      • Equal - Have the same quantity or value.

      • Unequal - Do not have the same quantity or value.

      Common misconception

      Children might find it hard to create their own puzzles in the final part of Task B as the dotted lines can be overwhelming.

      Model the process heavily for those who need it, where possible using a visualiser and sharing finished examples. Make good use of the template. A bigger version can be found in the additional materials.

      Teacher tip

      You might find that tracing paper is useful here to help children with visualisation. They can trace over one part and use it to see how many fit into the whole. Also, you might wish to give them stencils or templates when it comes to creating their own puzzles for no. 3 on Task B.

      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 is the name of the indicated part of the fraction?

      An image in a quiz
      Correct answer: Division bar
      Denominator
      Numerator

      Q2.
      How many parts has the whole been divided into if the fraction notation is $$ \frac{1}{5} $$?

      1
      Correct answer: 5
      6

      Q3.
      Complete the sentence: The whole has been divided into 3 equal parts and 1 is shaded. This is one-

      An image in a quiz
      Correct Answer: third

      Q4.
      Tick the correct fraction notation that shows one-sixth.

      $$ \frac{1}{5} $$
      $$ \frac{6}{1} $$
      $$ \frac{5}{1} $$
      Correct answer: $$ \frac{1}{6} $$

      Q5.
      Tick the correct fraction notation that shows one-quarter.

      Correct answer: $$ \frac{1}{4} $$
      $$ \frac{1}{3} $$
      $$ \frac{4}{1} $$
      $$ \frac{3}{1} $$

      Q6.
      Match the fraction name to the fraction notation.

      Correct Answer:$$ \frac{1}{2} $$,one-half

      one-half

      Correct Answer:$$ \frac{1}{4} $$,one-quarter

      one-quarter

      Correct Answer:$$ \frac{1}{12} $$ ,one-twelfth

      one-twelfth

      Correct Answer:$$ \frac{1}{3} $$,one-third

      one-third

      6 Questions

      Q1.
      Equal parts can be differently shaped. True or false?

      Correct answer: True
      False

      Q2.
      A piece of paper is folded in half and placed on top of another identically sized piece. What fraction of the whole is the paper on top showing?

      An image in a quiz
      $$ \frac{1}{4} $$ one-quarter
      $$ \frac{1}{3} $$ one-third
      Correct answer: $$ \frac{1}{2} $$ one-half
      We can’t tell because they’re different shapes.

      Q3.
      Look at the image. What fraction of the whole is the shaded part?

      An image in a quiz
      Correct answer: $$ \frac{1}{4} $$ one-quarter
      $$ \frac{1}{8} $$ one-eighth
      $$ \frac{1}{10} $$ one-tenth
      $$ \frac{1}{5} $$ one-fifth

      Q4.
      The skipping ropes are all the same length. What part of the whole is one of the ropes?

      An image in a quiz
      $$ \frac{1}{3} $$
      Correct answer: $$ \frac{1}{4} $$
      $$ \frac{1}{5} $$
      We can’t tell because they’re different shapes.

      Q5.
      What fraction of the whole is the shaded part?

      An image in a quiz
      $$ \frac{1}{2} $$ one-half
      Correct answer: $$ \frac{1}{3} $$ one-third
      $$ \frac{1}{4} $$ one-quarter
      $$ \frac{1}{5} $$ one-fifth

      Q6.
      Which two parts in the image show differently shaped equally sized parts? Select the letters that match the parts.

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

      To help you plan your 3 maths lesson on: Identify equal parts in a whole when they do not look the same in 2D shapes, download all teaching resources for free and adapt to suit your pupils' needs...