Use a part-part-whole model to represent a whole partitioned into two parts
Lesson details
Learning outcome
I can use a part-part-whole model to represent a whole partitioned into two parts.
Key learning points
- A whole group can be split in different ways and the 2 parts may look different.
- Add a numeral to the whole position when the objects have been moved out.
- Use part-part-whole diagrams in different orientations.
- Include examples where the two parts contain the same number of items.
- Represent the whole and the parts using numerals alongside the concrete and pictorial representations.
Keywords
Whole - All of something. Complete.
Part - A piece of a whole.
Partition - To break up a whole into parts.
Part-part-whole - A pictorial representation that shows the whole and its parts.
Common misconception
When using the part-part-whole model, children may think that the whole is also one of the parts.
When using the part-part-whole model, move the objects out of the whole into the parts, and replace the whole with a number.
Teacher tip
When using the part-part-whole model we need to clearly show that the whole is partitioned into the parts and is not included as one of the parts. For each example, repeatedly move the objects back and forth to represent splitting /combining of the parts
Licence
Lesson video
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Prior knowledge starter quiz
6 Questions
Q1.Is 8 the whole or a part?
Q2.Is 5 the whole or a part?
Q3.What is the whole?
Q4.What is the missing part?
Q5.Which part-whole model is showing Alex’s cars correctly partitioned?
Q6.Which part-whole model is showing Laura’s cars correctly partitioned?
Assessment exit quiz
6 Questions
Q1.How many cubes are in the whole?
Q2.How many cubes are in each part?
Q3.Laura thinks the whole will be 6. Is she correct?
Q4.Alex thinks the whole will be 6. Is he correct?
Q5.Alex thinks that the part can be bigger than the whole. Is he right?
Q6.Laura thinks there is more than one way to partition 4 cubes. Is she right?
To help you plan your 1 maths lesson on: Use a part-part-whole model to represent a whole partitioned into two parts, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your 1 maths lesson on: Use a part-part-whole model to represent a whole partitioned into two 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 1 maths lessons from the Comparing quantities - part part whole relationships unit, dive into the full primary maths curriculum, or learn more about lesson planning.