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How many new words per lesson? Fewer than you think

Aylara A.

Kids' teacher · founder of AylaraTalks

July 8, 2026 · 5 min read

Sixteen new words are in the textbook unit; six will actually survive the week. The gap between 'covered' and 'learned' is where kids quietly decide English is hard. Choosing fewer words isn't lowering the bar — it's refusing to pour water into a full cup.

Working numbers by age

  • Ages 3–5: 3–4 new words a lesson, all concrete nouns or actions you can mime.
  • Ages 6–8: 5–7 words, one of which may be 'free' (a colour with a noun they know).
  • Ages 9–11: 8–10 words if the topic is loved; 6 if it's abstract.
  • Any age, online: subtract one — screen lessons cost extra attention.

When the coursebook wants sixteen

Split the set: six words for mastery (games, personal sentences, review calendar), the rest for exposure only — kids meet them in the story or song without being tested. Exposure words often move themselves into mastery a unit later, free of charge.

Depth beats width

Six words known deeply — pronounced, read, spelled in a scramble, used about the child's own cat — generate more language than sixteen words at nodding-acquaintance level. Vocabulary size follows from vocabulary strength, not the other way round.

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About the author

Aylara A.

Kids' teacher · founder of AylaraTalks

Aylara is a kids' teacher who spent years hand-making every classroom game — cutting cards and drawing boards on paper sheets. She created AylaraTalks so no teacher has to start from a blank page again.

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