KS1 vs KS2: Key Differences, Milestones & How to Support Your Child at Home

Starting school is a big milestone — and so is moving from Key Stage 1 to Key Stage 2. If you've ever wondered exactly what changes between the two stages, what your child should know at each one, or how you can best support them at home, you're in the right place.

What is KS1?

Key Stage 1 covers Years 1 and 2, typically for children aged 5 to 7 years old. At this stage, children are building the foundations of reading, writing, and maths. The focus is on:

• Phonics and early reading
• Handwriting and basic sentence structure
• Addition, subtraction, and number recognition
• Introduction to the world around them (science, geography, history)

By the end of KS1, your child should be able to:

• Read simple texts with confidence and understanding
• Write sentences using capital letters, full stops, and basic punctuation
• Spell common words correctly (the Year 2 spelling list is a good guide)
• Add and subtract numbers up to 100
• Understand basic multiplication and division concepts
• Recognise and name 2D and 3D shapes
• Tell the time to the nearest 15 minutes

KS1 ends with teacher assessments (and Year 2 SATs), giving a picture of where your child is before they move up. You can find the full KS1 curriculum requirements on the GOV.UK National Curriculum page.

What is KS2?

Key Stage 2 covers Years 3 to 6, for children aged 7 to 11 years old. This is where learning becomes more structured and independent. Children are expected to:

• Read fluently and with comprehension
• Write in a range of styles with correct grammar and punctuation
• Work with fractions, decimals, and more complex maths
• Study science, history, geography, and languages in more depth

By the end of KS2, your child should be able to:

• Read fluently and discuss texts in depth
• Write in a range of styles — stories, reports, persuasive writing
• Use grammar, punctuation, and spelling accurately (including the Year 6 spelling list)
• Work confidently with fractions, decimals, and percentages
• Multiply and divide multi-digit numbers
• Understand basic algebra and geometry
• Recall all times tables up to 12×12

KS2 ends with the Year 6 SATs — the national tests that inform secondary school placement.

Key Differences at a Glance

How to Support Your Child at Home

You don't need to be a teacher to make a real difference. Little and often is the key — even 15–20 minutes a few times a week adds up significantly over a term.

For KS1 children:

• Practise letter formation and tracing with fun worksheets
• Count everyday objects — stairs, fruit, toys
• Read together every day, even if it's just 10 minutes
• Practise times tables in the car or at mealtimes

For KS2 children:

• Work through topic-based activity sheets to reinforce what they're learning in class
• Encourage them to write short stories or diary entries at home
• Use times tables practice regularly — it underpins so much of KS2 maths
• Make it fun — games, puzzles, and colouring activities all count!

Free & Printable Resources to Get You Started

At Reggie & Co, we create beautiful, print-at-home worksheets and activity books designed to make home learning feel less like homework and more like fun.

• Preschool & Year 1 Worksheets — Tracing Letters, Shapes & Numbers
• KS1 English & Maths Workbook — Ages 5–7
• Year 3 Maths Workbook — KS2 Ages 7–8
• Year 4 Science Workbook — KS2 Ages 8–9

All are instant downloads — print as many times as you need, whenever you need them.

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Final Thoughts

Whether your child is just starting Year 1 or heading into the final stretch of Year 6, home learning support makes a genuine difference. The transition from KS1 to KS2 can feel like a big leap — but with the right resources and a little consistency, you can help them build confidence every step of the way.

Frequently Asked Questions

What age is KS1 and KS2 in the UK?

KS1 covers Years 1 and 2, for children aged 5 to 7. KS2 covers Years 3 to 6, for children aged 7 to 11. Both are part of primary school education in England, Wales, and Northern Ireland.

What are SATs and when do children take them?

SATs (Standard Assessment Tests) are national tests taken at the end of KS1 (Year 2) and KS2 (Year 6). Year 2 SATs are largely teacher-assessed, while Year 6 SATs are formal written tests in English reading, grammar, punctuation and spelling, and maths. Results help schools and secondary schools understand where each child is academically.

How can I help my child with KS1 or KS2 at home?

Little and often is the most effective approach. Reading together daily, practising times tables, and working through topic-based worksheets a few times a week can make a significant difference over a term. Our printable workbooks are designed to support home learning in a fun, low-pressure way — no specialist teaching knowledge required.

What is the national curriculum in England?

The national curriculum sets out what children should be taught in state schools in England from ages 5 to 16. It covers core subjects (English, maths, science) and foundation subjects (history, geography, art, PE, and more). You can view the full curriculum on the GOV.UK National Curriculum page.

Are printable worksheets as good as bought workbooks?

Yes — and in many ways better. Printable worksheets are instant downloads you can print at home as many times as you need, which means no waiting for delivery and no running out of pages. Our workbooks are curriculum-aligned and designed to be engaging for children, with clear layouts that make them easy to use independently or alongside a parent.

What's the difference between KS1 and KS2 maths?

In KS1, children focus on numbers up to 100, basic addition and subtraction, simple multiplication and division, and shape recognition. In KS2, the curriculum expands significantly to include fractions, decimals, percentages, long multiplication and division, basic algebra, and geometry. Times tables (up to 12×12) are a key focus throughout KS2 and are tested in the Year 4 Multiplication Tables Check.