I remember doing vectors in my precalc class... but my teacher never gave it enough context so it was all about finding angles and lengths of combined vectors.

I was like "i don't understand the point" and I just did it all with trig... he didn't like that. I didn't care.

I'm really happy that my trig and calculus teachers in community college were physicists and engineers. I had the theory rounded out in the upper level courses at uni, but the approach in precalc/trig/calc was just so *practical*.

I think I'm gonna play the new fire emblem as a reward for crushing this week's precalc homework early

As a history student I had to take chemistry with a lab, a bio lecture, and math to an acceptably high level (algebra/precalc). There was also writing and an art requirement outside my major.

But consider: I understand how vaccines work, why neon glows red, understand stats, and know I can't draw

having to take precalc again after taking calc but not finishing the class still feels like pub stomping

Have you looked at the AP precalc CED? I’d imagine that it’s aligned with the Calc CED.

#iTeachMath

Teaching Precalc to kids who will go to AP Calc next year.

What does college board expect in terms of limits near vertical asymptotes? DNE, limit is infinity, either/both?

New free study guide: Horizontal and Vertical Asymptotes. The degree rule, the "simplify first" warning, and two worked examples with graphs. For Algebra 2 and Precalc students. Save and share freely. 📈

Ia pproached the unit circle in a way I havent seen elsewhere. It's all logic based on what they know.

By the end of day 2, most students had radians, sine and cosine values dialed.

I then show them this.. "this is how I was taught. Anybody want a copy?"

10x teaching precalc, 1 yes

We were just handed the standards.

My beef is that “discovery” is all very well but there’s a ton of basic skills you need first. You can’t “discover” in precalc if fractions are black magic to you. That’s where a lot of disconnect is, IMO. There are systemic issues *before* HS.

UCSD’s remedial math data is jarring:

42% had passed precalc/calc. 25% had 4.0s in high-school math.

Yet many landed in Math 2—and 1 in 4 missed: 7 + 2 = __ + 6.

What does an “A” measure anymore?

maybe im speaking too soon but ap precalc doesnt actually even seem that bad, idk why i failed the last time i took the class, either my brain was genuinely too underdeveloped for it, or i didn't put in the work needed to succeed like i am now

Picking our favorites went a long way to improving morale during Friday last block precalc when we first returned to face to face instruction