Conservation
Lesson details
Learning outcome
I can explain that when a number of objects has been rearranged, the amount stays the same, as long as nothing has been added or taken away.
Key learning points
- Recognise amounts that have been rearranged.
- Generalise that if nothing has been added or taken away, then the amount is the same.
Keywords
Same - Way in which two or more things we are comparing are like each other.
None - None means the same as nothing or not having changed something.
Some - Some means a number of things.
Common misconception
If using slides, not recognising objects have been rearranged and counting all again.
Gather objects to manipulate (either under a visualiser with the whole class, or in front of a small group) so that children can clearly see that none have been added or taken away.
Teacher tip
Set up the ideas within the slides practically so that children can clearly see what is happening to each set of objects. You might wish to try using a puppet to challenge the ideas throughout this lesson.
Licence
Lesson video
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Prior knowledge starter quiz
6 Questions
Q1.What comes next? 1, 2, 3, 4, 5...
Q2.How many pieces of fruit?
Q3.How many cakes?
Q4.How many candles are on the cake?
Q5.What comes next? 6, 7, 8, 9 ....
Q6.What does subitise mean?
Assessment exit quiz
6 Questions
Q1.The same or not the same?
Q2.The same or not the same?
Q3.The same or not the same?
Q4.The same or not the same?
Q5.When objects move, the total is ...
Q6.When none are added, the total is ...
To help you plan your 1 maths lesson on: Conservation, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your 1 maths lesson on: Conservation, 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 Counting, recognising and comparing numbers 0 - 10 unit, dive into the full primary maths curriculum, or learn more about lesson planning.