When several pupils in a cohort find quick, accurate calculation harder, a short fluency intervention may help. Before grouping them, separate weak fact retrieval from difficulty understanding or carrying out a calculation method.

Find the missing component

Use a short calculation interview and samples of classwork. Check:

• additive and multiplicative fact knowledge;

• strategies used when a fact is not recalled;

• place-value understanding;

• choice and execution of mental and written methods;

• estimation and checking;

• error patterns and self-correction.

Group pupils around a shared, specific gap. Do not reteach secure facts and methods simply because an overall score is low.

Teach in a connected sequence

Record the target, baseline, frequency, adult, review date and exit criteria. A typical pattern is two to four pupils, three or four sessions of 15 to 20 minutes a week; fact work suits short, frequent sessions more than one long one. Pupils with more facts to secure will need it for longer; the school decides where it fits and when to check progress (many schools review after six to eight weeks). Link each fact or procedure to number relationships and representations.

A session can include:

1. revisit a known relationship;

2. model how it derives a new fact or method;

3. practise with immediate feedback;

4. retrieve previously taught content;

5. apply learning to a short curriculum calculation;

6. explain and check the answer.

Accuracy and understanding come before faster recall. Timed work may be used cautiously after a strategy is secure, but it should not become the teaching method.

Adapt the intensity

Pupils can share a target while receiving different numbers of examples, prompts or retrieval opportunities. If one pupil's barrier is conceptual and another's is recall, they may not form a useful group.

Monitor transfer and retention

Use unfamiliar examples, delayed retrieval and normal maths work. Track independence and strategy choice as well as correct answers.

Programme and resource options

• Number Sense Maths (paid) offers Number Facts Fluency (addition and subtraction, from age 5) and Times Tables Fluency (multiplication and division, from age 7). Number Facts Fluency teaches facts through explicit derived-fact strategies, and the provider says it suits whole classes or intervention groups. Each is an annual school subscription priced by school size (£125 to £375 plus VAT in October 2026), with free introductory training. Its impact page cites schools' results and testimonials, not an independent evaluation. It fits when the gap is fact recall and the group can practise little and often. It won't fix an insecure written method or weak place value on its own.

• DfE mathematics guidance for primary schools provides free progressions for core number concepts.

• EEF: Improving Mathematics in Key Stages 2 and 3 provides free guidance on assessment, representations and targeted support.

Talamo has no commercial relationship with any of the organisations named here. We suggest them only because we think they could be useful to schools.