Y1 Maths

How Many Left 1 Lesson

This Year 1 How Many Left lesson covers the prior learning of finding one less, before moving onto the main skill of solving simple subtractions using number stories.

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 Objectives

Mathematics Year 1: (1N1a) Count to and across 100, forwards and backwards, beginning with 0 or 1, or from any given number

Mathematics Year 1: (1C2a) Add and subtract one-digit and two-digit numbers to 20, including zero

Mathematics Year 1: (1C4) Solve one-step problems that involve addition and subtraction, using concrete objects and pictorial representations, and missing number problems such as 7=_________ 9

Get the most from lessons!

Classroom Secrets logo

Resources for teachers

Sign up for £4.83
Classroom Secrets Kids logo

Interactive activities for children

Start free trial

2 Teaching Support

Classroom Secrets logo

Subscription

Lesson Slides

Lesson Slides

These lesson slides guide pupils through the prior learning of finding one less, before moving onto the main skill of how many left 1. There are a number of questions to check pupils' understanding throughout.

Classroom Secrets Kids logo

Subscription

csk_teaching_title

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

Classroom Secrets logo

Subscription

Worksheet

Worksheet

This worksheet recaps prior learning of finding one less, before moving onto the main skill of solving simple subtractions using number stories.

Classroom Secrets logo

Subscription

Full Step

Full Step

For further practice, visit the full step for a selection of resources and activities to support the prior learning for this lesson.

Classroom Secrets Kids logo

Free

csk_pre_learning_title

Interactive Activity

This Reception One Less Than Game will help children remember number facts in a fun way.

Classroom Secrets Kids logo

Subscription

csk_pre_learning_title

Interactive Activity

This Reception Recalling One Less Game will help children to identify the number that is one less than a given number.

3 Activities

Classroom Secrets logo

Subscription

Worksheet

Worksheet

This worksheet includes varied fluency questions for pupils to practise the main skill of how many left 1.

Classroom Secrets logo

Subscription

Practical Activities

Practical Activities

These practical activities include tasks covering a range of provision areas for pupils to practise the main skill of how many left 1.

Classroom Secrets logo

Subscription

Full Step

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.

Classroom Secrets logo

Subscription

Supporting Activity

Supporting Activity

This how many left 1 supporting activities sheet contains suggestions for additional tasks you might wish to use to support pupils' understanding of the concepts taught in the lesson.

Classroom Secrets Kids logo

Subscription

csk_activities_title

Interactive Activity

This Year 1 How Many Left 1 Game is designed to check pupils’ understanding of subtracting to find out how many are left.

4 Extension

Classroom Secrets logo

Subscription

Extension

Extension

This how many left 1 extension task includes a challenge activity which can be used to further pupils' understanding of the concepts taught in the how many left 1 lesson.

Classroom Secrets Kids logo

Subscription

csk_extensions_title

Interactive Activity

This Year 1 How Many Left 1 Maths Challenge is designed to check pupils’ understanding of subtracting to find out how many are left.