He ariā hopureo e mea ana, ina tika te taumata o te reo e whāngaihia ana ki te ākonga, kātahi ka pai te ako. Ko te taumata tērā ki paku tua atu i te taumata e mārama pai noa iho ana te ākonga.
A theory of language acquisition which argues that if the level of language being fed to the learner is correct, then acquisition will be effective. It is the level slightly in advance of what the learner can easily comprehend.
reo - language
aroā - be comprehended, understood