Mathematics and Numeracy: What to Teach (Wales)
Your Teacher Information Pack for Mathematics and Numeracy in Wales: the curriculum structure, our short summaries with links to the official wording, and key dates.
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- Country
- Wales
- Ages
- 3–16
- Source
- Curriculum for Wales
- Last checked
- 2026-10-20
The 27 statements of what matters apply across the whole 3–16 continuum. Descriptions of learning set out progression at five progression steps that broadly relate to expectations at ages 5, 8, 11, 14 and 16 (our summary).
Plan the whole year: open this course in the Year Planner – every lesson dated around your term dates, with a coverage check. Free.
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What to teach
Curriculum for Wales sets out statements of what matters for each Area of Learning and Experience. Below are our short summaries, with links to the official wording on Hwb.
Mathematics and Numeracy
- Number lets us represent and compare quantities and underpins later mathematics.
- Algebra uses symbols to express patterns and relationships.
- Geometry studies shape, space and position; measurement quantifies the physical world.
- Statistics and probability help us collect and interpret data and make informed decisions.
Progression steps: Progression step 1 (broadly age 5), Progression step 2 (broadly age 8), Progression step 3 (broadly age 11), Progression step 4 (broadly age 14), Progression step 5 (broadly age 16).
Assessments and key dates
Learners in Wales take personalised assessments (online) in reading and numeracy; schools set their own assessment within the curriculum.
Official documents
- hwb.gov.wales/curriculum-for-wales/mathematics-and-numeracy/statements-of-what-matters
- hwb.gov.wales/curriculum-for-wales/mathematics-and-numeracy/descriptions-of-learning
Trusted free resources
- Hwb (Welsh Government) – the official curriculum site.
- BBC Bitesize – videos and quizzes by nation and stage.
Links only: we don't copy their content and we aren't connected to these organisations.
More packs
All Wales packs · Find another TIP
Structure and statements of what matters from Curriculum for Wales guidance on Hwb (Welsh Government, Crown copyright). Summaries are Classfern's own words – read the official wording via the link.
No official wording is reproduced: codes and structure are facts, and the short descriptions are our own summaries. Always read the official wording via the links. Checked on 2026-10-20.
Classfern is not affiliated with or endorsed by the Welsh Government, Hwb or WJEC.