Construct a whole when given a part and the number of parts
Lesson details
Learning outcome
I can construct a whole when given a part and the number of parts.
Key learning points
- If you know one part and how many parts there are we can construct the whole.
- If you know that the part is one out of 4 equal parts we can draw the whole.
- The whole can be one shape or a group of objects.
Keywords
Whole - The whole is all the parts or everything, the total amount.
Part - A part is some of the whole.
Construct - Constructing something involves making something by joining parts together.
Common misconception
Children might think that any shape they draw around or use is a whole and the new shapes they create represent lots of wholes joined together.
Ensure the children understand that a whole can be anything and can change as you add parts to it. A piggy bank is a good analogy for this as you are constantly adding money to the whole and it is made up of many parts.
Teacher tip
Make use of 2D shapes as stencils here. The shape in question 1 of Task A can easily be replaced with something more available to all the children.
Licence
Lesson video
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Prior knowledge starter quiz
6 Questions
Q1.What is the missing label in this bar model?
Q2.Look at the sequence of months. Which season is missing?
Q3.What is the name of this shape?
Q4.What is the name of this shape?
Q5.Complete the sentence. 90 is made of groups of 10
Q6.How many 10s are there in 50?
Assessment exit quiz
6 Questions
Q1.Thinking about the parts, which of these wholes is the odd one out?
Q2.Thinking about the parts, which of these wholes is the odd one out?
Q3.Strip A is made up of 3 equal parts. Strip B is made up of 4 equal parts. Which strip is the longest?
Q4.How many equal parts does each numeral have?
Q5.The curves and straights in the track are the same length. Which circuit is longer?
Q6.The curves and straights in the track are the same length. Which circuit is longer?
To help you plan your 3 maths lesson on: Construct a whole when given a part and the number of parts, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your 3 maths lesson on: Construct a whole when given a part and the number of parts, download all teaching resources for free and adapt to suit your pupils' needs.
The starter quiz will activate and check your pupils' prior knowledge, with versions available both with and without answers in PDF format.
We use learning cycles to break down learning into key concepts or ideas linked to the learning outcome. Each learning cycle features explanations with checks for understanding and practice tasks with feedback. All of this is found in our slide decks, ready for you to download and edit. The practice tasks are also available as printable worksheets and some lessons have additional materials with extra material you might need for teaching the lesson.
The assessment exit quiz will test your pupils' understanding of the key learning points.
Our video is a tool for planning, showing how other teachers might teach the lesson, offering helpful tips, modelled explanations and inspiration for your own delivery in the classroom. Plus, you can set it as homework or revision for pupils and keep their learning on track by sharing an online pupil version of this lesson.
Explore more key stage 2 maths lessons from the Unit fractions as part of a whole unit, dive into the full primary maths curriculum, or learn more about lesson planning.