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A prerequisite knowledge graph of 1590 learning concepts across 8subjects. Track what you've mastered and see exactly what you're ready to learn next — the topics whose prerequisites you've already met. Built on the Marble Open Skill Taxonomy.

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Irregular Plural Nouns

English · Grammar & Punctuation · procedural

Form and use irregular plural nouns (e.g., children, teeth, mice, geese) in addition to regular plurals, recognising that some nouns have irregular plural forms that do not follow the -s/-es pattern

What mastery looks like

  • Form and use irregular plural nouns correctly (e.g. child→children, tooth→teeth, mouse→mice, goose→geese)
  • Identify collective nouns that name a group (e.g. 'a flock of birds', 'a group of children', 'a pack of wolves')
  • Correct over-regularised plurals in writing (e.g. change 'mouses' to 'mice', 'foots' to 'feet')

Check your understanding

If you point to a picture of several mice or a group of children, can Irregular Plural Nouns write the correct plural — knowing it's "mice" not "mouses" and "children" not "childs"?

Prerequisites

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