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got to 90% of math academy's foundations ii course feeling beautiful and wonderful and competent, then took the diagnostic exam in stewart's calculus. well!!!!!!! bad news.

#nowtoboldlygo posts #math academy #math notes

a belated review of math academy: cleared 90% of foundations ii course & unsubscribed!!

if you're not familiar, math academy is a paid (expensive) subscription platform that teaches math from fourth grade to advanced college coursework like multivariable calculus or math for machine learning. (more info on the courses here.) i found it on r/learnmath, and after trying out a couple of other free resources i ended up sticking with math academy. here's my post about the first foundations course.

tl;dr: i had a very positive opinion of math academy until moving to textbooks, after unsubscribing. i now have an ambivalent opinion of math academy. no longer plan to resubscribe for later courses, but i would recommend it circumstantially.

it's a great option for the bridge between khan academy and textbooks:

it's more incentivizing (immediate results!),

easy to study in short bursts (average lesson is like 10-ish mins),

feels wonderfully productive (they use an SRS so i feel like i'm really retaining everything), &

you can see the progress made every day (with a % to course completion!)

there are massive downsides (especially comp to textbooks):

it's not worth the cost. following their guidance - "We recommend targeting about 30XP per day, 4 days per week" - would've amounted to $750 for this course. it's emphatically not worth that cost, or even a quarter of that, with how many free resources are available online.

(1 XP per minute, 7k XP total for me, $50/month = $750 total.)

it felt more thorough than any other resource initially, as i was learning so much & so quickly, but i did not leave the site with demonstrable success in algebra, precalculus, or probability & combinatorics.

some results after finishing 90% of foundations ii:

glanced through Precalculus with Calculus Previews by Dennis G. Zill and Jacqueline M. Dewar (recommended by Susan Rigetti's guide) & i was almost wholly unfamiliar with two chapters: most of conic sections (ellipse, hyperbola, rotation of axes), and polar coordinates (incl parametric equations). most of the textbook was familiar, with many sections needing lots of additional review/practice.

took the diagnostic test in Calculus: Early Transcendentals by James Stewart (rec'd by SR's guide) & got a 45%. the test covered some algebra, analytic geometry, functions, and trig.

i was familiar with a lot of the early chapters in Stewart's Calculus from math academy, though i've been demonstrably weak on algebra & trig.

i'm posting this a month into my calculus ii class, for context. so far, the journey has been

(a) khan academy until 8th grade [link to tag] (b) about a month or two of trying lecture videos + workbooks (c) math academy's foundations i and most of ii (d) Stewart's Calculus chapters one through four (e) a 98% on my first calculus ii exam

i don't necessarily regret math academy, but if i could go back i would supplement with an advanced algebra textbook to grow my stamina for textbook study. i don't plan to resubscribe at any point for their other classes, though i would be open to other subscription services. (i've been tempted by calcworkshop! and chad's prep for chemistry.)

#⏳#nowtoboldlygo posts #stem update for future reference #mathblr #math academy #math notes

missed my math league by ten points 😭😭😭

#demoted into the pits of hell (ruby league) 😭😭😭😭😭#nowtoboldlygo posts #math academy

finished mathematical foundations ONE with math academy!!!

my stem education continues with the foundations courses on the website mathacademy.com!!! it's a subscription website, and a pretty expensive resource at that. i found it thru r/learnmath.

i finished up to 8th grade math on khan academy, which is free. khan academy's great for a supplementary resource, or if you're super familiar with the material already.

after khan academy's 8th grade, i placed halfway through the first foundations course:

tons and tons of polynomials, geometry.

took me 35 hours as an untracked estimate.

i love the learning style. the lessons are wonderfully bite-sized, and the lack of video explanation helps me to keep plugging away no matter my location. and i of course love an srs.

still working on my multiplication tables! aiming for complete memorization of addition, subtraction, multiplication, & division up to 25.

i recently started El lenguaje de las matemáticas / The Language of Mathematics by Raúl Rojas González which i am super enjoying. i picked up the English version at the library, and realized i could read it in the original!!!

#stem update for future reference #nowtoboldlygo posts #⏳#math notes #math academy

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