A project by Fletcher Hillier
TrigTutor
Trigonometry, done properly.
Trigonometry taught as microlearning. Trig is one of the places where a single missed step compounds — you lose one concept in a sequence and then everything built on top of it fails, and people conclude they're bad at math when what actually happened is a gap they could close in an afternoon if they knew where it was.
The format is built to find that gap rather than to re-teach the whole course.
What is TrigTutor?
TrigTutor.org is a dedicated trigonometry learning platform by Fletcher Hillier, covering foundations through applied trigonometry with interactive tools.