Use knowledge of calculating within 20 to solve problems involving statistics
I can use knowledge of calculating within 20 to solve problems involving statistics.
Use knowledge of calculating within 20 to solve problems involving statistics
I can use knowledge of calculating within 20 to solve problems involving statistics.
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Lesson details
Key learning points
- When adding three addends, it is efficient to first add two addends using a known fact e.g. pair to 10 or double.
- When adding, we can bridge 10 by partitioning a part so that we can ‘make 10’.
- When subtracting, we can bridge 10 by partitioning a part to create a part that is equal to the ones digit of whole.
- The difference can be found through subtraction.
Keywords
Interpret - Understand and give meaning to mathematical data.
Efficient - Not wasting time or effort. An efficient strategy is one we can carry out easily.
Bridge 10 - Addition or subtraction that crosses the 10 boundary.
Difference - The result of subtracting one number from another. Way in which two or more things we are comparing are not the same.
Common misconception
Children may struggle to correctly read the information presented within the pictogram/bar chart.
A ruler can be used to help children line up the top of the bar with the scale. Model this as a strategy to support accurate reading.
To help you plan your year 2 maths lesson on: Use knowledge of calculating within 20 to solve problems involving statistics, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your year 2 maths lesson on: Use knowledge of calculating within 20 to solve problems involving statistics, 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.
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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 Calculating within 20 unit, dive into the full secondary maths curriculum, or learn more about lesson planning.
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Lesson video
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Starter quiz
6 Questions
Exit quiz
6 Questions
