Every Barnet provider's 2024/25 A-level Mathematics value-added score, sourced from DfE and read with the confidence interval that decides whether it is a finding.
Book a Free ConsultationBarnet is a London borough where DfE could score 37 schools and colleges on A-level Mathematics value added for 2024/25 — a subject-specific figure, distinct from the whole-school A-level progress score. Of those 37, 33 carry a published score and 15 clear zero, DfE’s own test for a genuine finding. Leading Tuition tutors A-level Mathematics students across Barnet, whichever of the 37 scored providers, or any other Barnet sixth form, they attend.
Our expert A-level Maths tutors help students across Barnet build a programme around their own school’s specification and papers — whichever of Barnet’s 37 scored providers they attend.
Book a Free ConsultationMessage us on WhatsAppThe Department for Education publishes an institution-level value-added score for A-level Mathematics separately from its whole-school, all-subjects A-level progress score — the figure covered on our separate guide to A-level tuition in Barnet, which this page does not repeat. Re-queried directly against the Department’s own API for 2024/25 entrants, Barnet returns 37 provider rows for A-level Mathematics: 33 carry a published score, and 4 are suppressed because the matched cohort is too small for DfE to report without risking identifying an individual student.
Of the 33 published scores, 15 have a 95% confidence interval that sits entirely above zero or entirely below it — 9 entirely above, 6 entirely below. That is DfE’s own test for a statistically distinguishable finding: the score itself on one side of zero, and the whole interval on the same side. The remaining 18 published scores have an interval that spans zero, so DfE’s own methodology does not treat them as a finding in either direction, however the raw score reads on its own. The full table below sets out all 33 published rows.
Barnet is a single-tier London borough for DfE reporting purposes, local authority code 302, not a district reported under a larger county authority. This page covers every school and college whose DfE address places it within that boundary. A school just outside Barnet, even one a Barnet family regularly considers, will not appear in the table below — its own results sit under its own local authority’s figures, not Barnet’s.
Every value-added score on this page is published alongside a count DfE’s own dataset labels simply Number of entries. It is tempting to read that as a school’s total A-level Mathematics exam entries for the year, and it is not the same figure. Woodhouse College’s own Compare School and College Performance subjects-entered record shows 356 total A-level Mathematics exam entries for 2024/25. The value-added dataset’s entries figure for Woodhouse is 351, five fewer.
The Department’s own methodology explains the gap: exam results are matched to a student’s characteristics and prior attainment information before any performance measure, value added included, can be calculated for that student. An entry that cannot be matched to a prior-attainment record — a student who joined the school after GCSE with results DfE cannot trace, for instance — is excluded from the value-added calculation and its entries count, while still counting in the school’s own published total entries. On this page, every value-added score is followed by this entries figure in the same sentence, as the brief for this page requires, and it should be read as the matched subset behind that score, not as the school’s full Mathematics cohort.
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Book a Free ConsultationMessage us on WhatsAppThe table below carries all 33 of Barnet’s published 2024/25 A-level Mathematics value-added scores, sorted by entries — largest matched cohort first — not by score, and the order is not a ranking. Nine of the 33 clear zero on the positive side and six on the negative side; the rest have an interval that spans zero. Three rows are worth reading in full, for different reasons, and each is discussed on its own below the table.
| Provider | Entries | Value added | 95% confidence interval | Verdict |
|---|---|---|---|---|
| Woodhouse College | 351 | 0.04 | -0.09 to 0.17 | Spans zero |
| Queen Elizabeth's School, Barnet | 162 | 0.36 | 0.17 to 0.55 | Clears zero |
| The Henrietta Barnett School | 126 | -0.48 | -0.7 to -0.27 | Clears zero |
| Ashmole Academy | 122 | 0.28 | 0.07 to 0.5 | Clears zero |
| Mill Hill County High School | 92 | -0.06 | -0.31 to 0.19 | Spans zero |
| Wren Academy Finchley | 72 | -0.4 | -0.69 to -0.12 | Clears zero |
| London Academy | 59 | -0.82 | -1.14 to -0.51 | Clears zero |
| St Michael's Catholic Grammar School | 58 | 0.58 | 0.27 to 0.9 | Clears zero |
| Finchley Catholic High School | 57 | -0.26 | -0.58 to 0.06 | Spans zero |
| Mill Hill School Foundation | 57 | 0.42 | 0.1 to 0.74 | Clears zero |
| JCoSS | 55 | 0.71 | 0.39 to 1.04 | Clears zero |
| Brampton College | 54 | 0.12 | -0.21 to 0.44 | Spans zero |
| The Compton School | 48 | 0.28 | -0.07 to 0.62 | Spans zero |
| Christ's College Finchley | 47 | 0.4 | 0.05 to 0.75 | Clears zero |
| East Barnet School | 44 | 0.41 | 0.05 to 0.77 | Clears zero |
| Imperial College London Mathematics School | 43 | 1.03 | 0.66 to 1.4 | Clears zero |
| Hasmonean High School for Boys | 35 | 0.86 | 0.46 to 1.27 | Clears zero |
| Barnet and Southgate College | 34 | -0.76 | -1.18 to -0.35 | Clears zero |
| Hendon School | 34 | -0.36 | -0.77 to 0.06 | Spans zero |
| Saracens High School | 28 | -0.71 | -1.17 to -0.26 | Clears zero |
| Hasmonean High School for Girls | 28 | 0.39 | -0.06 to 0.85 | Spans zero |
| St Mary's and St John's CofE School | 25 | 0.05 | -0.43 to 0.54 | Spans zero |
| The Totteridge Academy | 24 | 0.01 | -0.48 to 0.5 | Spans zero |
| Queen Elizabeth's Girls' School | 23 | -0.76 | -1.27 to -0.26 | Clears zero |
| Bishop Douglass School Finchley | 19 | 0.41 | -0.14 to 0.96 | Spans zero |
| St James' Catholic High School | 17 | -0.51 | -1.09 to 0.08 | Spans zero |
| Menorah High School for Girls | 14 | -0.41 | -1.05 to 0.24 | Spans zero |
| The King Alfred School | 11 | 0.53 | -0.2 to 1.25 | Spans zero |
| Copthall School | 8 | -0.75 | -1.61 to 0.1 | Spans zero |
| St Andrew the Apostle Greek Orthodox School | 7 | 0.18 | -0.73 to 1.09 | Spans zero |
| Menorah Grammar School | 6 | 0.61 | -0.37 to 1.59 | Spans zero |
| Beth Jacob Grammar School for Girls | 6 | 0.07 | -0.92 to 1.05 | Spans zero |
| Beis Medrash Elyon | 6 | 0.08 | -0.91 to 1.06 | Spans zero |
Source: Department for Education, institution-level qualification and subject value-added dataset, A-level Mathematics, 2024/25 entrants. Sorted by matched entries, largest first, not by score. "Clears zero" means the whole 95% confidence interval sits on one side of zero; "Spans zero" means it does not. This is DfE's value-added progress measure for 2024/25 entrants and is not a measure of teaching quality, and the order below is not a ranking.
Our expert A-level Maths tutors help students across Barnet at every one of the 37 providers in the table above, whether their own school’s score clears zero or not — the tuition is built around a student’s own papers, not their school’s cohort figure.
Book a Free Consultation Message us on WhatsAppThe Henrietta Barnett School’s 2024/25 A-level Mathematics value-added score is -0.48, with a 95% confidence interval of -0.7 to -0.27 from 126 entries. This is DfE’s value-added progress measure for 2024/25 entrants, and it is not a measure of teaching quality.
Imperial College London Mathematics School is a specialist sixth form, sited in Barnet, that admits on mathematical aptitude and where every student studies both Mathematics and Further Mathematics rather than following a general sixth-form curriculum; full detail on its admissions and intake is on our separate A-level tuition in Barnet page. Its 2024/25 A-level Mathematics value-added score is 1.03, with a 95% confidence interval of 0.66 to 1.4 from 43 entries — the highest score of any Barnet provider on this measure. This is DfE’s value-added progress measure for 2024/25 entrants and not a measure of teaching quality, and it describes a selective, subject-specialist cohort rather than a general Barnet sixth form.
Nationally, Imperial is one of six schools in DfE’s 2024/25 dataset that specialise in mathematics alone; the exam board it enters for A-level Mathematics is not named on its own site, a detail our separate coverage of London’s specialist maths sixth forms sets out in full for Further Mathematics. This page does not restate that detail, and covers Mathematics value added specifically rather than admissions or curriculum structure.
London Academy’s 2024/25 A-level Mathematics value-added score is -0.82, with a 95% confidence interval of -1.14 to -0.51 from 59 entries — the most negative published score of any Barnet provider on this measure. This is DfE’s value-added progress measure for 2024/25 entrants, and it is not a measure of teaching quality.
A larger matched cohort narrows a value-added score’s confidence interval — DfE’s own guidance is explicit that a small cohort carries a wide interval, in which a handful of students can move the published score considerably — but a narrower interval is not the same thing as one that clears zero. Barnet’s own data makes the point directly: its single largest matched Mathematics cohort of any provider does not clear zero.
Woodhouse College’s 2024/25 A-level Mathematics value-added score is 0.04, with a 95% confidence interval of -0.09 to 0.17 from 351 entries — more matched entries than any other Barnet provider on this measure, and still an interval that spans zero. This is DfE’s value-added progress measure for 2024/25 entrants and not a measure of teaching quality.
Mill Hill County High School’s 2024/25 A-level Mathematics value-added score is -0.06, with a 95% confidence interval of -0.31 to 0.19 from 92 entries, an interval that also spans zero. This is DfE’s value-added progress measure for 2024/25 entrants and not a measure of teaching quality.
Hendon School’s 2024/25 A-level Mathematics value-added score is -0.36, with a 95% confidence interval of -0.77 to 0.06 from 34 entries, an interval that spans zero as well. This is DfE’s value-added progress measure for 2024/25 entrants and not a measure of teaching quality.
DfE’s own technical guidance on the 16-19 value-added measure explains why a confidence interval exists at all: a school or college is not the only influence on a student’s attainment, and the guidance names a student’s home life and any private tuition they receive as examples of the other factors a confidence interval is built to capture. Read against that, a score that spans zero is not a weaker version of a finding — it is DfE’s own methodology declining to call one.
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Four Barnet providers were suppressed on this measure for 2024/25 — DfE publishes ‘c’ in place of a score, interval and entries count where the matched cohort sits below its reporting threshold, to avoid a figure small enough to risk identifying an individual student’s result. Suppression means the cohort was too small for DfE to score, not that a school lacks A-level Mathematics provision; those are different claims, and this page makes only the first.
| Provider | 2024/25 Mathematics value-added status | GIAS status |
|---|---|---|
| Clarion | Suppressed by DfE (cohort below reporting threshold) | Open |
| Mount House School | Suppressed by DfE (cohort below reporting threshold) | Open |
| Tiferes High School | Suppressed by DfE (cohort below reporting threshold) | Open |
| WENTWORTH COLLEGE | Suppressed by DfE (cohort below reporting threshold) | Open |
Source: Department for Education, institution-level qualification and subject value-added dataset, A-level Mathematics, 2024/25 entrants, for suppression; Get Information about Schools for establishment status, checked the day this page was published.
Every Barnet A-level Mathematics programme begins with a short diagnostic session against a student’s own specification, current working grade and target, rather than a fixed content checklist — whether that student attends a provider whose value-added score clears zero, one whose interval spans zero, or one of the four suppressed rows above. A cohort figure, on either measure, describes a group; it does not describe the gap a specific student needs closed between a mock result and an offer.
Sessions run one-to-one online with a shared whiteboard, working through a student’s own past papers and marking against the actual mark scheme for their board, and progress is reviewed against a student’s own target grade at agreed intervals rather than against a borough or school-wide figure. Our national Maths tuition service covers our approach to the subject beyond Barnet alone, and families researching Key Stage 4 results across the same schools can see our separate guide to GCSE tuition in Barnet.
A cohort figure is not your child’s figure. Our expert A-level Maths tutors work from a student’s own mock results and topic-by-topic gaps, whatever their sixth form’s published value-added score reads.
Book a Free ConsultationMessage us on WhatsAppThe Department for Education could score 37 Barnet schools and colleges on A-level Mathematics value added for the 2024/25 academic year, drawn from its institution-level qualification and subject value-added dataset. Of those 37, 33 carry a published figure and 4 are suppressed because the matched cohort sits below DfE's reporting threshold. This is a subject-specific figure covering Mathematics alone, separate from the whole-school A-level progress score covered on our A-level tuition guide to Barnet.
Of the 33 published 2024/25 scores, 15 have a 95% confidence interval sitting entirely on one side of zero — 9 entirely above it and 6 entirely below — which is DfE's own test for a statistically distinguishable finding rather than noise. The other 18 published scores have a confidence interval that spans zero, meaning DfE's own methodology does not treat them as a finding either way, whatever the raw score reads.
DfE's own field label for the count published alongside each value-added score is simply Number of entries, and it is not the same figure as a school's total Mathematics exam entries. Woodhouse College's own Compare School and College Performance subjects-entered page records 356 total A-level Mathematics exam entries for 2024/25; the value-added dataset's entries figure for Woodhouse is 351, five fewer. DfE's own methodology states that exam results are matched to students' prior attainment information before performance measures are calculated, and an entry without a matched prior-attainment record cannot be included in this figure.
No. Woodhouse College's 2024/25 Mathematics value-added score is 0.04, with a 95% confidence interval of -0.09 to 0.17 from 351 entries — the largest matched Mathematics cohort of any Barnet provider — and that interval spans zero, so DfE's own methodology does not treat it as a finding in either direction. This is DfE's value-added progress measure for 2024/25 entrants and not a measure of teaching quality; a bigger cohort narrows the interval, but narrower is not the same as clearing zero.
Imperial College London Mathematics School — a specialist sixth form, sited in Barnet, that admits on mathematical aptitude and where every student studies both Mathematics and Further Mathematics — recorded the borough's highest 2024/25 A-level Mathematics value-added score: 1.03, with a 95% confidence interval of 0.66 to 1.40 from 43 entries. This is DfE's value-added progress measure for 2024/25 entrants and not a measure of teaching quality, and it describes a selective, subject-specialist intake rather than a general Barnet sixth form.
DfE suppresses a school's value-added figure, publishing 'c' in place of a score, interval and entry count, when the matched cohort is too small to report without risking identifying an individual student. Four Barnet providers were suppressed on this measure for 2024/25: Mount House School, WENTWORTH COLLEGE, Tiferes High School and Clarion. Suppression means the cohort was too small to score, not that a school lacks A-level Mathematics provision; all four are recorded as Open on the Get Information about Schools service as of the date this page was checked.
It covers every school and college whose DfE address places it within the London Borough of Barnet, local authority code 302 — a single-tier borough, not a district reported under a larger county authority. A school just outside Barnet's boundary, even one a Barnet family regularly considers, will not appear in this page's table; families researching a specific neighbouring school should check that school's own local authority separately.
No, and DfE's own technical guidance is explicit about why: a school or college is not the only influence on a student's attainment, and confidence intervals exist precisely to capture other factors — the guidance names a student's home life and any private tuition they receive as examples. The score describes one matched cohort's progress against its own prior attainment for one year of entrants, not a ranking of teaching between schools.
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Leading Tuition is rated 4.8 out of 5 on Trustpilot from 59 reviews, read on 3 October 2026. See also our guide to A-level tuition in Barnet and our A-level Maths tuition service.
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