Help children unlock the hidden building blocks of the English language and become confident word detectives!

Grammarsaurus – The Big Book of Morphemes is a comprehensive dictionary of morphemes (the smallest building blocks of meaning that make up every word), designed to empower learners to spell with understanding, rather than through guesswork. Ideal for children with literacy difficulties, this go-to resource assists with building vocabulary and strengthens comprehension through word structure.

With clear visuals, accessible definitions and dual coding to aid memory, this dictionary helps children make lasting connections between spelling, meaning and vocabulary. Inside, children will learn how to:

- combine morphemes to build words

- use prefixes, bases and suffixes to unlock meaning

- explore how words connect to Latin, Greek or Old English roots

- break down unfamiliar vocabulary with ease.

Already supporting classrooms in schools around the world, the Grammarsaurus approach is trusted by over 20,000 teachers. With the Department for Education’s Writing Framework (July 2025) now mandating that schools teach morphology systematically, Grammarsaurus – The Big Book of Morphemes is essential for all primary school teachers.

*From the winners of the 2026 Education Resources Awards for Primary Resource (Non-ICT)*