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What is the 'six-week dip' in student transition, and how do trusts address it?
The 'six-week dip' is the period after the summer holiday during which students readjust to school routines and lose academic momentum — particularly in reading. It is especially acute for bilingual and EAL learners, who may go the entire summer without speaking English with an adult. Laidlaw Schools Trust tackles it head-on by assessing students with the NGRT before the summer break and front-loading literacy support from the first week of September, rather than waiting to see whether a dip actually occurs.
The six-week dip is not a minor administrative concern. For students already navigating a major change in environment, social circles, and academic expectations, a summer without structured literacy engagement can widen gaps that take months to close. As Talia Caralambos highlights in Education: Joining the Dots, the risk is highest for children from bilingual households or those classified as EAL learners — students who rely on school as their primary English-language environment.
At Laidlaw Schools Trust, which serves communities with high mobility, economic disadvantage, and over 60 languages spoken in some school settings, this is not a hypothetical risk. It is a documented, recurring pattern that the trust has chosen to treat as a predictable challenge rather than an unavoidable one.
Diagnosing before summer — not firefighting in autumn
The shift Laidlaw Schools Trust made is straightforward but consequential: move assessment before the holiday, not after it. By administering the NGRT to Year 6 pupils in May and June, secondary school staff receive full diagnostic data by mid-June. That means six to eight weeks to plan targeted support before a single new pupil walks through the door in September.
This approach, discussed in depth in this episode of Education: Joining the Dots, allows schools to identify which students are at risk of a dip before it happens — and to allocate literacy resources accordingly from day one of the new school year. The alternative — assessing in September and then designing interventions — compresses the response window and guarantees that some children will already be struggling before any support arrives.
Caralambos is clear that the NGRT is not used in isolation. Discrepancy analysis between NGRT scores and CAT4 (Cognitive Ability Test 4) results allows teachers to identify students whose reading performance is meaningfully higher or lower than their measured cognitive potential. This adds a layer of precision: the goal is not simply to flag low readers, but to find students whose needs are hidden by adequate-looking overall scores.
A particular urgency for EAL and bilingual learners
The six-week dip hits hardest for students who do not use English at home. For a child in a household where another language is the primary means of communication, the summer break can mean weeks — sometimes the full six weeks — without a single meaningful exchange in English with an adult.
Caralambos speaks to this from lived experience as well as professional observation. She comes from a bilingual household herself and has first-hand knowledge of how language environments shape learning trajectories. In a trust where some schools have over 60 languages spoken among their pupil population, this is not an edge case — it is a defining feature of the school community, and one that demands a proactive rather than reactive literacy strategy.
The full framing of this challenge — and the practical steps Laidlaw Schools Trust uses to respond to it — is laid out clearly in the Education: Joining the Dots episode on literacy and student transition.
"Don't wait until a child is failing to act. You need to diagnose on entry, involve staff from the start, and if you're fortunate enough to have digital tools that you can access, align that to your transition work, because it can be transformational."
Talia Caralambos — Director of English, School Improvement Team, Laidlaw Schools Trust.
Caralambos trained and taught English and Media at Ritchie Diver Secondary School in London before relocating to the North East. She comes from a bilingual household and taught English in India at age 17 — an experience she credits as the starting point of her commitment to equity through literacy. At Laidlaw Schools Trust, she leads English curriculum development and literacy strategy across 11 schools, many of which serve communities shaped by high mobility, economic disadvantage, and extraordinary linguistic diversity.
This principle — diagnose early, act immediately, never wait for failure — is the direct operational answer to the six-week dip. It reframes the dip not as something that happens to schools, but as something schools can choose to anticipate and prevent. Caralambos makes the case for this approach with characteristic directness in Education: Joining the Dots.
See also
Why does Bishop Wilkinson Catholic Education Trust administer NGRT in Year 6 rather than waiting until September of Year 7?
Graeme Finlay explains that previously some secondary schools were administering the NGRT in September, which created a lag between identifying children who needed support and actually being able to provide it — meaning weeks of the new school year were already lost before any intervention could begin.
How does the Bishop Wilkinson Catholic Education Trust structure its primary-to-secondary transition programme?
Bishop Wilkinson Catholic Education Trust begins transition at the end of Year 5 with a large event called the Bishop Wilkinson Celebration of Sport at Gateshead Stadium, bringing together pupils from across the trust's primary schools to meet each other before the formal transition year even begins.
Why did Laidlaw Schools Trust put literacy at the centre of its transition programme?
Talia Caralambos argues that reading is "the biggest and most important barrier to academic success, and actually the biggest barrier to all success." Given that Laidlaw's schools serve communities with high mobility, economic disadvantage, and over 60 languages spoken in some settings, literacy was the most urgent lever available.
Key takeaways
- The six-week dip is the predictable loss of reading momentum that follows the summer holiday — not an unavoidable consequence of the calendar, but a manageable risk.
- EAL and bilingual learners face the sharpest version of the dip: some go the entire summer without communicating in English with an adult.
- Laidlaw Schools Trust neutralises the dip by completing NGRT assessment in May and June, giving secondary schools diagnostic data before the new year begins rather than after the damage is done.
- Combining NGRT with CAT4 discrepancy analysis lets teachers identify students whose literacy needs are masked by otherwise adequate performance — precision that a single score alone cannot provide.
The full conversation with Talia Caralambos — including the practical steps behind Laidlaw Schools Trust's transition model — is available on Listenly.
Listen to the episode on Listenly