20 Facts About Language, Learning, and Curriculum Access

by Amanda Archbald

We often describe pupils as “accessing the curriculum”, yet we rarely stop to ask what access actually means. For multilingual learners, access is not simply about being present in the room, behaving well, or producing work that looks broadly similar to their peers. It is about whether the language of instruction, discussion, reading, and assessment is genuinely available to them.

Many multilingual pupils are bright, curious, and highly capable. They think deeply, reason well, and understand far more than they can easily express in English. Yet their experience of school is shaped by invisible thresholds, the number of words they recognise, the language embedded in a question, the pace of spoken explanations, or the reading level assumed by a worksheet. These thresholds are rarely obvious, and because they are invisible, they are often misunderstood.

This blog brings together a series of research-informed facts about language development, literacy, and curriculum access. Not to alarm, but to illuminate. Because when we understand the scale of the linguistic demands we place on pupils each day, we are better positioned to teach with intention, empathy, and fairness.

• Children need to hear a word between 6 and 12 times in meaningful contexts before it is learned.
  • For multilingual children, this exposure often happens across multiple languages, slowing English acquisition without reducing cognitive capacity.
• Vocabulary size at age 5 is one of the strongest predictors of reading comprehension at age 15.
  • Early language gaps do not disappear on their own, they compound over time.
• Phonics alone does not equal language comprehension.
  • A child can decode accurately and still not understand what they are reading.
• Language development in early years is foundational for every subject that follows, not just literacy.
  • Oral language underpins reasoning, problem-solving, and later academic writing.
• The language demands of the curriculum increase sharply around ages 7 to 9.
  • This is when pupils move from learning to read towards reading to learn, often without explicit language teaching.
• A pupil can read fluently but still lack the vocabulary needed to access subject content.
  • Fluency masks comprehension gaps.
• Academic vocabulary is rarely acquired incidentally.
  • Without explicit teaching, multilingual pupils fall behind even when teaching is strong.
• By the end of Primary, pupils are expected to understand abstract language, inference, and figurative meaning.
  • These are some of the hardest aspects of a new language to acquire.
• Writing places a far greater language load on multilingual pupils than reading.
  • They must generate vocabulary, grammar, and structure simultaneously.
• Gaps in language widen across the primary years unless deliberately addressed.
  • Progress in content does not automatically lead to progress in language.
• Accessing GCSE texts independently typically requires a reading age of around 13 to 14.
  • This is about access, not ability.
• Approximately 98% vocabulary coverage is necessary for independent comprehension.
  • Below this threshold, reading becomes effortful and comprehension suffers.
• Independent access to secondary academic texts requires knowledge of roughly 8,000 to 9,000 word families.
  • Everyday spoken English uses only around 2,000 to 3,000.
• It takes an average of 5 to 7 years to develop Cognitive Academic Language Proficiency (CALP).
  • This timeline does not shorten simply because pupils are bright or motivated.
• GCSE command words are low-frequency, high-impact vocabulary.
  • Misunderstanding one command word can undermine an entire response.
• Timed assessments disproportionately disadvantage pupils still developing academic language.
  • Language processing competes with thinking time.

Whole-School Realities

• Every teacher is a language teacher, whether they realise it or not. Every explanation, task, and assessment is mediated through language.
• Multilingual learners are not struggling because the curriculum is too hard, but because the language threshold is too high. When language access improves, attainment often follows.

For many multilingual pupils, school is not experienced as “too hard”, but as “too fast”, “too dense”, or “just out of reach”. The effort required to process language sits alongside the effort required to think, reason, and respond. When language is the barrier, pupils may appear hesitant, quiet, or less confident, not because they lack understanding, but because they are working twice as hard to access what others take for granted.

The encouraging reality is that language barriers are not fixed. They respond to thoughtful teaching, explicit modelling, repetition, and time. Small adjustments in how we explain, scaffold, question, and assess can make an enormous difference to how pupils experience learning. When we slow down language without lowering expectations, we create classrooms where curiosity, confidence, and kindness are not aspirational values, but lived experiences.

Supporting multilingual learners is not about doing more, but about seeing more. When we notice the language load in our lessons and respond with intention, we move closer to a school culture where all pupils are genuinely able to access, engage, and succeed.