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. 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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2 Teaching Support

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Lesson Slides

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.

PowerPoint from the old Resource Pack
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Modelling PowerPoint

Modelling PowerPoint

This powerpoint can be used to model the questions that the children will complete on the Varied Fluency and Reasoning & Problem Solving worksheets as part of this lesson.

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Lesson Slides

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.

1 Prior Learning

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Worksheet

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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Interactive Activity

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 Practical Activities

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Supporting Activity

Supporting Activity

This the One More One Less supporting activities sheet contains suggestions for additional tasks you might wish to use to support pupils' understanding of the concepts taught in the lesson.

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Practical Activities

Practical Activities

These practical activities include tasks covering a range of provision areas for pupils to practise the main skill of one more one less.

2 Varied Fluency

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Mixed Practice

Mixed Practice

This worksheet includes varied fluency questions for pupils to practise the main skill of one more one less.

Varied Fluency from the old Resource Pack
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Worksheet

Worksheet

This differentiated worksheet includes varied fluency questions for pupils to practise the main skill of this lesson.

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Interactive Activity

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.

2 Reasoning & Problem Solving

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Worksheet

Worksheet

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.

Reasoning and Problem Solving from the old Resource Pack
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Worksheet

Worksheet

This differentiated worksheet includes reasoning and problem solving questions to support the teaching of this step.

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Discussion Problem

Discussion Problem

This worksheet includes two discussion problems which can be used in pairs or small groups to further pupils' understanding of the concepts taught in this lesson.

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Interactive Activity

Interactive Activity

This Year 1 One More and One Less Maths Challenge aims to challenge pupils' understanding of place value.

2 Homework

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Worksheet

Worksheet

This differentiated worksheet includes varied fluency and reasoning and problem solving questions to support the teaching of this step.

2 Additional Activities

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Year 1 Place Value Consolidation Steps 4, 5, 6 and 7

Year 1 Place Value Consolidation Steps 4, 5, 6 and 7

Grandad Terry continues to show Lily around his Toy Factory. Lily uses her knowledge of calculating one more and one less to work out how many toys he has.

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Consolidation Pack

Consolidation Pack

These Place Value worksheets are fantastic at helping your pupils practice their reasoning and problem solving skills. This pack contains two different question types for Year 1 Spring block 2

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Home Learning Pack

Home Learning Pack

This Spring week 6 Maths pack contains varied fluency, reasoning and problem solving worksheets