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      Identify equal parts in a whole when they do not look the same in 3D contexts

      Lesson details

      Learning outcome

      I can identify equal parts in a whole when they do not look the same in 3D contexts.

      Key learning points

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

      Keywords

      • Whole - The whole is all the parts or everything, the total amount.

      • Part - A part is some of the whole.

      • Equal - Have the same quantity or value.

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

      Common misconception

      Children might think that the parts of the whole they create in Task B have to be able to fit together to make the same shape as the whole.

      Reinforce the concept that the whole is about quantity and not necessarily about shape. Plasticine is a good way to demonstrate this.

      Teacher tip

      Make sure you've plenty of cubes, containers and plasticine to reinforce the concepts practically. This lesson is about experiencing the learning as much as visualising.

      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 4 lots of 4?

      Correct Answer: 16, sixteen

      Q2.
      What is 8, 3 times?

      Correct Answer: 24, twenty four

      Q3.
      What is 6, 4 times?

      Correct Answer: 24, twenty four

      Q4.
      Complete the sentence: The whole has been divided into 5 equal parts and 1 is shaded. This is one-

      Correct Answer: fifth

      Q5.
      What does the 3 tell us in this fraction? $$ \frac{1}{3} $$

      The whole has been divided into parts
      Correct answer: The whole has been divided into 3 equal parts
      3 of the parts of the whole have been selected

      Q6.
      Match the fraction name to the fraction notation.

      Correct Answer:$$ \frac{1}{10} $$,one-tenth

      one-tenth

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

      one-twelfth

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

      one-third

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

      one-quarter

      6 Questions

      Q1.
      True or false? Equal parts have to look the same.

      True
      Correct answer: False

      Q2.
      True or false? The quantity of water in each container can’t be the same because the water is in different shaped containers.

      An image in a quiz
      True
      Correct answer: False

      Q3.
      The picture shows parts of a whole. Which pair of parts are equal?

      An image in a quiz
      A and B
      Correct answer: B and C
      C and A

      Q4.
      What fraction of the whole is each of these equal parts shown in the picture?

      An image in a quiz
      $$ \frac{1}{8} $$
      Correct answer: $$ \frac{1}{2} $$
      $$ \frac{1}{16} $$
      $$ \frac{1}{4} $$

      Q5.
      What fraction of the whole is each of these equal parts shown in the picture?

      An image in a quiz
      $$ \frac{1}{8} $$
      $$ \frac{1}{2} $$
      $$ \frac{1}{16} $$
      Correct answer: $$ \frac{1}{4} $$

      Q6.
      What fraction of the whole is each of these equal parts in this picture?

      An image in a quiz
      $$ \frac{1}{24} $$
      $$ \frac{1}{12} $$
      $$ \frac{1}{6} $$
      Correct answer: $$ \frac{1}{4} $$

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