Y1 Maths
One More One Less Lesson
This Year 1 One More One Less lesson covers the prior learning of counting one more and one less within 20, before moving onto the main skill of counting one more and one less within 50.
The lesson starts with a prior learning worksheet to check pupils’ understanding. If they need more practice, you can choose other resources for that step. The interactive lesson slides recap the prior learning before moving on to the main skill. Children can then practise further by completing the activities and can extend their learning by completing an engaging extension task.
National Curriculum Objective
Mathematics Year 1: (1N2b) Given a number, identify one more and one less
Mathematics Year 1: (1N4) Identify and represent numbers using objects and pictorial representations including the number line, and use the language of: equal to, more than, less than (fewer), most, least
Mathematics Year 1: (1N2c) Read and write numbers from 1 to 20 in numerals and words
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1 Prior Learning
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Worksheet
This worksheet recaps prior learning of counting one more and one less within 20, before moving onto the main skill of counting one more and one less within 50.
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Full Step
For further practice, visit the full step for a selection of resources and activities to support the prior learning for this lesson.
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Interactive Activity
This Year 1 Count One More and One Less Game checks pupils' understanding of counting one more and one less within 20.
2 Teaching
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Lesson Slides
These lesson slides guides pupils through the prior learning of counting one more and one less within 20, before moving onto the main skill of one more one less. There are a number of questions to check pupils' understanding throughout.
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Lesson Slides
These are the same as the lesson slides on Classroom Secrets. You can assign this as an activity for pupils to access individually in school or remotely from home.
3 Activities
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Worksheet
This worksheet includes varied fluency, reasoning and problem solving questions for pupils to practise the main skill of one more one less.
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Practical Activity
This worksheet includes varied fluency, reasoning and problem solving questions for pupils to practise the main skill of one more one less.
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Full Step
For further practice, visit the full step where you will find a selection of further resources and activities such as a differentiated resource pack, homework/extension worksheet and discussion problem.
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Interactive Activity
This Year 1 One More and One Less Game checks pupils' understanding of identifying one more or one less than a given number.
4 Extension
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Extension
This one more one less extension task includes a challenge activity which can be used to further pupils' understanding of the concepts taught in the one more one less lesson.
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Interactive Activity
This Year 1 One More and One Less Maths Challenge aims to challenge pupils' understanding of place value.
