Sources and licences

The published curricula SpellTrails' spelling rules are written against, the word lists it adapts, and the notice each one asks for.

Curricula

None of the bodies below endorses SpellTrails or has reviewed it. How SpellTrails follows each one is our own mapping.

© Australian Curriculum, Assessment and Reporting Authority (ACARA) 2010 to present, unless otherwise indicated. This material was downloaded from the Australian Curriculum website (accessed 31 August 2026) and was modified. The material is licensed under CC BY 4.0.

Contains public sector information licensed under the Open Government Licence v3.0: the National Curriculum in England's spelling appendix informs the wording of some rule cards.

Phonics sequencing draws on the Australian Government Literacy Hub phonics progression (© Commonwealth of Australia, CC BY 4.0).

Word lists

The Writing Desk's list of everyday words is adapted from FrequencyWords by Hermit Dave (© 2016, licensed CC BY-SA 4.0), whose counts come from the OPUS OpenSubtitles 2018 corpus, built from OpenSubtitles.org. Changes made: filtered to real English words in Australian spelling, and merged with SpellTrails' own word list. Our adapted list is offered under the same CC BY-SA 4.0 licence.

Word classes on the Writing Desk come from WordNet 3.1 (© 2011 Princeton University).

This website

The typefaces Baloo 2 and Nunito are used under the SIL Open Font License 1.1 (Baloo 2 licence, Nunito licence).