KS1 stands for Key Stage 1, the first formal stage of the British primary curriculum, for children aged 5 to 7. It covers Year 1 and Year 2 and builds on early years education by introducing more structured learning across a range of subjects.

For families considering international education in Ho Chi Minh City, understanding Key Stage 1 helps clarify exactly which year groups and ages it covers, what children learn, and how schools support both academic progress and personal development during these formative years.

This guide explains what KS1 means, the age and year range it covers, the subjects taught, how children are assessed, and how schools such as ABC International School support students through this stage.

Key Takeaways

What Does KS1 Mean?

Key Stage 1 for parents guide

KS1 is the common abbreviation for Key Stage 1, the first stage of the UK primary education system after the Early Years Foundation Stage (EYFS). The term “key stage” refers to the way the British National Curriculum is divided into blocks of school years, each with its own learning expectations. Key Stage 1 marks the beginning of more formal schooling, while still keeping a child-centred, engaging approach.

At this stage, children begin to:

KS1 is designed to balance structured learning with creativity, keeping children curious and motivated as they transition from early years education.

What Age Is Key Stage 1? (Year and Grade Equivalents)

Key Stage 1 is for children aged 5 to 7 years old. It covers two school years:

Key StageYear GroupAgeApprox. US Grade Equivalent
KS1Year 15–6Kindergarten
KS1Year 26–7Grade 1

So if you are asking “what year is KS1?”, it is Year 1 and Year 2. If you are asking “what grade level is KS1?”, it broadly aligns with Kindergarten and Grade 1 in the US system, though international schools map this slightly differently depending on the child’s birth date and prior schooling.

KS1 follows directly on from the Early Years Foundation Stage, so children arrive in Year 1 already familiar with a structured school routine. While these age ranges give general guidance, every child develops at their own pace, and schools adapt to individual learning needs and abilities.eir own pace. Schools take this into account by offering supportive environments that adapt to individual learning needs and abilities.

What Will My Child Learn in Key Stage 1?

what children learn in Key Stage 1

The KS1 curriculum is designed to be broad and balanced, nurturing a child’s academic skills, creativity, and physical development. The subjects are divided into two categories: core and foundation.

Core Subjects in KS1

1. English

English focuses on developing communication skills, including:

Reading is particularly emphasised to help children build vocabulary and comprehension from an early stage.

2. Mathematics

Mathematics introduces basic numerical concepts such as:

The aim is to build strong numeracy foundations that support future learning.

3. Science

Science encourages curiosity and exploration of the world through:

Children begin to develop early scientific thinking skills through hands-on learning.

Foundation Subjects in KS1

Key Stage 1 subjects and learning goals

1. Computing

Computing introduces children to basic digital literacy, including:

2. Art and Design

Art and Design allows children to express creativity through:

3. Geography and History

These subjects help children understand the world around them:

4. Physical Education (PE)

PE supports physical development by encouraging:

5. Music

Music helps children develop:

Key Skills Developed in Key Stage 1

Key Stage 1 goes beyond academic learning by helping children build a strong foundation of essential skills that support both their education and personal growth. During this stage, students gradually develop confidence, independence, and the ability to engage actively in their learning.

Key skills developed include:

Together, these skills provide a strong foundation that supports continued academic progress and helps children adapt successfully to future stages of education.

KS1 vs KS2: What’s the Difference?

A common question from parents is how Key Stage 1 differs from Key Stage 2. Here is a quick comparison:

Key Stage 1 (KS1)Key Stage 2 (KS2)
Age5–77–11
Year groupsYear 1–2Year 3–6
FocusFoundational literacy, numeracy, and core skillsGreater depth and complexity across subjects
PhonicsCore focus; Year 1 Phonics Screening CheckPhonics consolidated; emphasis shifts to comprehension, grammar, and wider reading

In short, KS1 builds the foundations and KS2 deepens them, with the phonics emphasis of KS1 giving way to more advanced reading, writing, and reasoning in KS2. At the ABCIS, both stages sit within our primary curriculum.

How Are Children Assessed in Key Stage 1?

Key Stage 1 curriculum explained

Assessment in KS1 is designed to be supportive and informative, not stressful. The main purpose is to help teachers understand what each child knows and where they might need extra help. Parents are kept informed about their child’s progress throughout.

The Year 1 Phonics Screening Check

Near the end of Year 1, children take a short, one-on-one Phonics Screening Check with their teacher. They are asked to read 40 words, some of which are real words and some are “pseudo-words” (or “non-words”). This confirms they can use their phonics knowledge to decode words accurately, a crucial skill for fluent reading.

End of KS1 Assessments (Year 2)

At the end of Year 2, teachers make a formal assessment of each child’s attainment in English, Maths, and Science. While schools may use short tests, often called SATs, to help inform these judgments, the final result is based on a broad teacher assessment of the child’s work throughout the year. This provides a more holistic and reliable picture of a child’s abilities. Children are assessed as working:

How Can Parents Support Learning in KS1?

Your involvement is one of the biggest factors in your child’s success. Here are proven ways to support their KS1 journey:

How The ABC International School Supports Key Stage 1 Students

Key Stage 1 age range UK

At The ABC International School (ABCIS), we are dedicated to providing an exceptionally caring and supportive environment for our Key Stage 1 students in Years 1 and 2 (ages 5 to 7). Our primary curriculum is designed to nurture young learners as they build on the foundations from Early Years, supporting a smooth and confident transition into more structured learning while continuing to develop academically, socially, and emotionally.

Here is how we ensure every child thrives during this crucial stage:

An Adapted British Curriculum

We deliver a broad and balanced curriculum based on the National Curriculum of England, thoughtfully adapted to reflect our students’ experiences in an Asian environment.

Dedicated Teams

Our committed teachers and teaching assistants cater to every child’s individual needs, ensuring they are fully prepared for a successful move to Key Stage 2.

Targeted Progression

We carefully track student progress and set directed targets to guarantee their continued success and development.

Specialised Language Support

For students who are new to English, we offer targeted intervention sessions in small groups to boost their foundational language skills. (We support our EAL learners through a combination of tailored in-class assistance and small-group interventions, ensuring students build essential language foundations while engaging fully with their daily lessons.)

Holistic Development

Beyond the classroom, we offer a rich after-school programme featuring a vast range of extra-curricular activities to build confidence and uncover new talents.

We would love to welcome you and your child to our community. To learn more about our Key Stage 1 programme, arrange a visit to our campuses or speak directly with our team, please reach out to our administration office.

Key Stage 1: Building the Foundations for Future Learning

Key Stage 1 is a foundational stage in the British curriculum where children begin developing essential academic skills while growing socially, emotionally, and intellectually. It provides the structure and support young learners need to transition confidently into more advanced stages of education.

For parents exploring international education options in Ho Chi Minh City, understanding KS1, its age range, year groups, and curriculum, helps in making informed decisions about a child’s learning environment and long-term academic journey.

Frequently Asked Questions (FAQ)

1. What does KS1 stand for?

KS1 stands for Key Stage 1, the first stage of the British primary curriculum for children aged 5 to 7 (Year 1 and Year 2).

2. What age and year group is Key Stage 1?

Key Stage 1 covers ages 5 to 7: Year 1 (ages 5–6) and Year 2 (ages 6–7).

3. What grade level is KS1 equivalent to?

KS1 broadly aligns with Kindergarten and Grade 1 in the US system, though exact placement varies by a child’s birth date and prior schooling.

4. What is the difference between Key Stage 1 and Key Stage 2?

KS1 is for ages 5–7 (Years 1–2), focusing on foundational skills. KS2 is for ages 7–11 (Years 3–6), building on KS1 to explore subjects in greater depth and complexity.

5. Is Key Stage 1 the same as infant school?

Yes. In the UK, the period covering KS1 is often called “infant school.” A “primary school” typically covers both infant (KS1) and junior (KS2) stages.

6. How much homework is given in Key Stage 1?

Homework is minimal and designed to reinforce learning without stress, typically daily reading, weekly spellings, and basic Maths practice. The goal is to establish positive learning habits.

7. What happens if my child does not pass the Year 1 Phonics Screening Check?

The school provides extra phonics support throughout Year 2 to help them catch up, and they retake the check at the end of Year 2.

8. Are foreign languages taught in Key Stage 1?

It is not a National Curriculum requirement, but many schools, particularly international schools like the ABCIS, introduce a modern foreign language in KS1 to build early linguistic skills and cultural awareness.