[peripetylabs]

We were taught sine, cosine and tangent in the context of how they could be used to derive angles from other angles, not what they were and how they worked. They were presented as tools that could be used in particular ways that had to be memorized.

This has to be the worst things you could do to a student in a math class. In engineering they call it "plug and chug" -- students must plug numbers into a formula they've memorized and come up with an answer.

By the way, we learned trigonometry with the unit circle. If we forgot a formula, we'd just draw a little circle and derive it. I'm always grateful for that teacher.

[dkd]

same here, though i learnt it during my university years not at the high school.