Justin Skycak ✓
@justinskycak · carrying the floats & logs · joined 30 Dec 2016
Chief Quant @_MathAcademy_ Built the engine behind the most efficient math learning system Created Fractional Implicit Repetition Author of The Math Academy Way
49 966Followers
207Following
10 762Posts total
3.5MViews on collected posts
Последние посты
Ищем новые посты…
Most people study to reduce anxiety, not to increase ability.
Highlighting, transcribing, re-reading… these techniques make you feel like you're preparing yourself.
But they don't really move the needle on actual performance because they don't force you to retrieve information
2.3K views · 61 likes
· 4 reposts · 1 replies
Open on X →
The retention gain from transcribing or re-reading information pales in comparison to the retention gain from retrieval practice.
The best way to retain material is to test yourself on it.
Only peek back at the reference if you are totally stuck and cannot remember how to
3.8K views · 93 likes
· 3 reposts · 3 replies
Open on X →
The anti-memorization movement produces grown-ass adults who can't evaluate 5-3x6 without a calculator because they
-- can't do mental arithmetic,
-- never learned their multiplication tables,
-- forgot the order of operations,
-- and forgot how negative numbers work.
4.7K views · 125 likes
· 4 reposts · 0 replies
Open on X →
Lots of students study way more than necessary while simultaneously learning way less than necessary.
They use low-effort, inefficient study techniques like re-reading and highlighting instead of just sucking it up and engaging in efficient retrieval practice and
15K views · 394 likes
· 21 reposts · 5 replies
Open on X →
Transcribing, re-reading, highlighting, etc., are all bullshit study techniques.
Seriously, if you want to bullshit someone into thinking that you are studying, without actually retaining much information, then those are the techniques to use.
But if you’re interested in
60.2K views · 1K likes
· 94 reposts · 16 replies
Open on X →
@justinskycak "You cannot think with knowledge you do not have"
given what I see on here, people sure do try 😅
1.1K views · 36 likes
· 3 reposts · 1 replies
Open on X →
@justinskycak Evident in sports and music. Can’t invent new crossover unless you have elite handles already in the system. https://t.co/WnvSPmtRf8
1.2K views · 39 likes
· 4 reposts · 1 replies
Open on X →
@justinskycak Picasso is a perfect example. Strict/rigorous classical training from his professor father, Barcelona Academy, and the Royal Academy before breaking the mold with cubism, assemblage, blue period, etc.
669 views · 23 likes
· 0 reposts · 1 replies
Open on X →
You cannot be creative at a high level unless you are robotic at a low level. https://t.co/3EisKkC2sM
330.5K views · 10.4K likes
· 1.6K reposts · 70 replies
Open on X →
@justinskycak I think this applies beyond math to languages and just logic in general.
Maybe we need to start having mental gyms just like we have physical gyms, now that memorization and thinking are becoming more and more optional.
12.8K views · 212 likes
· 13 reposts · 3 replies
Open on X →
@justinskycak Im a professional memory scientist and professor and i approve this message
4.1K views · 78 likes
· 0 reposts · 1 replies
Open on X →
@justinskycak Shouldn't memorization just be a result of repetition in actual use? I'm only anti-memorization it precedes real problem-solving.
6.4K views · 54 likes
· 0 reposts · 8 replies
Open on X →
The anti-memorization movement has left millions of students unable to think because every elementary operation consumes working memory.
For instance, solving equations feels smooth when basic arithmetic is automatic. It's like moving puzzle pieces around, and you just need to
1.1M views · 5K likes
· 934 reposts · 59 replies
Open on X →
It's shocking how predictive working memory capacity (WMC) is. It's even a better predictor than IQ when predicting a young student's future academic success. https://t.co/4YjF87YfuL
356.1K views · 1.9K likes
· 138 reposts · 35 replies
Open on X →
This is the textbook I wrote to support the most advanced high school math/CS sequence in the USA.
It's freely available. Link in first reply.
In Math Academy's (former) Eurisko program, which ran from 2020-23, we scaffolded high school students up to doing masters/PhD-level ht
683.2K views · 5.8K likes
· 712 reposts · 65 replies
Open on X →
@justinskycak thanks Justin! MA and Eurisko were amazing opportunities.
5.6K views · 132 likes
· 0 reposts · 4 replies
Open on X →
I'm so proud of Matteo for the many years of hard work he put in leading up to this point, and I'm so happy he's getting to see it seriously pay off so early in life.
Matteo and other @_MathAcademy_ students took their mathematical talent development seriously and learned
-- ht
10K views · 240 likes
· 18 reposts · 3 replies
Open on X →
Can't think of a better way to close out 2025 than seeing the head of NASA ask my former student @matteopaz06 to apply, with a fighter jet ride as a signing bonus.
Matteo was one of my students in the Eurisko program, which, during its operation from 2020-23, was the most
772.3K views · 4.4K likes
· 328 reposts · 82 replies
Open on X →
@MAstronomers @justinskycak update: @_MathAcademy gets you a tweet from the head of NASA and a ride in a fighter jet https://t.co/dbEzIVcsZR
198.9K views · 123 likes
· 8 reposts · 4 replies
Open on X →
На фоне аккаунтов своего размера
14 постов за последние 90 дней рядом с диапазоном 10K–100K подписчиков. показывается далеко за пределами своей аудитории, и она отвечает.
Медианные просмотры5 569этот аккаунт1 020медиана для 10K–100K
Охват, %11.15%этот аккаунт4.00%медиана для 10K–100K
Вовлечённость, %2.67%этот аккаунт1.55%медиана для 10K–100K
| Показатель | Этот аккаунт | Медиана для 10K–100K | Отношение |
|---|---|---|---|
| Медианные просмотры на пост | 5 569 | 1 020 | 5.46× |
| Охват (просмотры ÷ подписчики) | 11.15% | 4.00% | 2.79× |
| Вовлечённость | 2.67% | 1.55% | 1.72× |
Другие в этом диапазоне → Сравнить с другим аккаунтом → Как считаются эти ориентиры →
Growth & engagement
How the posts we collected actually performed: views and reaction rate post by post, what the audience did with them, and where the follower count goes.
Views per post
356.1K7 Sep
1.1M8 Sep
6.4K
4.1K
12.8K
330.5K9 Sep
669
1.2K
1.1K
60.2K10 Sep
15K11 Sep
4.7K
3.8K
2.3K12 Sep
Last 14 collected posts, oldest on the left. The scale is logarithmic: one post can outrun the rest a hundred times over.
Engagement rate per post
0.58%7 Sep
0.58%8 Sep
0.97%
1.91%
1.78%
3.68%9 Sep
3.59%
3.53%
3.54%
1.84%10 Sep
2.79%11 Sep
2.73%
2.61%
2.87%12 Sep
Reactions — likes, reposts, replies and quotes — divided by views. Median for 10K–100K accounts is 1.55%.
What the audience does
Likes61.0%30 016 in total
Reposts8.0%3 931 in total
Replies0.7%362 in total
Quotes0.4%206 in total
Bookmarks29.9%14 713 in total
Share of every reaction we collected for this account. Replies mean argument, reposts mean endorsement, bookmarks mean the post was worth keeping.
Followers by day
12 Sep
Daily snapshots since 12 Sep 2026; the dashed line is the starting count.
Похожие аккаунты
جامعة سليمان الراجحي ✓
@sredusa
99.9K followers
· 11.2K posts
MBUSII DEH HSC
@Mbusii
99.9K followers
· 23.9K posts
Lucas Pope
@dukope
99.9K followers
· 7.3K posts
WDWMAGIC.COM
@wdwmagic
99.9K followers
· 18.7K posts
T.C.Ayla🇹🇷 ✓
@TCAyla35
99.9K followers
· 128.5K posts
PANews丨APP全面升级 ✓
@PANewsCN
99.9K followers
· 68.1K posts
Nottinghamshire CCC
@TrentBridge
99.9K followers
· 64.8K posts
Germán Balcarce
@GermanBalcarce
99.9K followers
· 119.7K posts