Y1 Maths
Count One More and One Less Lesson
This Year 1 Count One More and One Less lesson covers the prior learning of finding one more and one less of numbers up to ten, before moving onto the main skill of finding one more and one less of numbers up to twenty.
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 Objectives
Mathematics Year 1: (1N1a) Count to 20, forwards and backwards, beginning with 0 or 1, or from any given number
Mathematics Year 1: (1N2a) Count, read and write numbers to 100 in numerals
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
Get the most from lessons!
2 Teaching Support
Subscription
Lesson Slides
These lesson slides guides pupils through the prior learning of finding one more and one less of numbers up to ten, before moving onto the main skill of count one more and one less. There are a number of questions to check pupils' understanding throughout.
Subscription
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.
Subscription
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.
Free
Video Tutorial
In this One More One Less with Objects Video Tutorial, Katie shows children how to find one more and one less of a number.
1 Prior Learning
Subscription
Worksheet
This worksheet recaps prior learning of finding one more and one less of numbers up to ten, before moving onto the main skill of finding one more and one less of numbers up to twenty.
Free
Interactive Activity
This Reception One Less Than Game will help children remember number facts in a fun way.
Subscription
Matching Activity
This Reception One More Than Game enables children to know the number that is one more than.
Subscription
Interactive Activity
This reception finding one less game will help children to identify the number that is one less than a given number.
Subscription
Interactive Activity
This reception finding one more game will help children to identify the number that is one more than a given number.
2 Practical Activities
Subscription
Practical Activities
These practical activities include tasks covering a range of provision areas for pupils to practise the main skill of count one more and one less.
Subscription
Supporting Activity
This count one more and 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.
2 Varied Fluency
Subscription
Worksheet
This worksheet includes differentiated varied fluency questions for pupils to practise sorting objects.
Subscription
Mixed Practice
This worksheet includes varied fluency questions for pupils to practise the main skill of count one more and one less.
Subscription
Flash Cards Activity
This Year 1 One More One Less Game Flash Cards aims to support and develop recall of one more and one less.
Subscription
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
Subscription
Worksheet
This differentiated worksheet includes reasoning and problem solving questions to support the teaching of this step.
Subscription
Discussion Problem
These count one more and one less Discussion Problems includes two discussion problems which can be used in pairs or small groups to further pupils' understanding of the concepts taught in this lesson.
Subscription
Maths Challenge Activity
This Year 1 One More and One Less Maths Challenge aims to challenge pupils' understanding of place value.
2 Homework
Subscription
Worksheet
This differentiated worksheet includes varied fluency and reasoning and problem solving questions to support the teaching of this step.
2 Additional Activities
Subscription
Home Learning Pack
This Autumn week 11 Maths pack contains varied fluency, reasoning and problem solving worksheets
Subscription
Learning Video Clip
Diver Dan is exploring a sunken pirate ship. He is counting the different objects and creatures and solving puzzles to find the treasure. He needs help to find one more and one less.
Subscription
Consolidation Pack
This resource is aimed at Year 1 Expected and has been designed to give children the opportunity to consolidate the skills they have learned in Autumn Block 4 – Place Value (within 20).
