THRASS (Teaching Handwriting, Reading and Spelling Skills)

Years/Age range


Type of children

Low attainers

Child/Adult ratio

Class, group

Length of intervention

13 weeks on average; 30 minutes a day

Brief description

THRASS is a structured multi-sensory literacy programme teaching children about letters, speech sounds and spelling choices. There are three main areas: handwriting, reading and spelling. It increases understanding of the structure of English with its focus on 44 phonemes: 20 vowel sounds and 24 consonant sounds.


For reading accuracy in Y3-6: useful to substantial
For comprehension in Y3-6: useful to remarkable
For spelling in Y3: useful
For reading accuracy in Y7: remarkable
For comprehension in Y7: remarkable
For spelling in Y7: remarkable

Further information