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1267 items — page 9 of 26

other justinmath.com

I think incrementally working through a knowledge graph (KG) is the right mental model for CS education too, not just math.

Oct 18, 2024

other justinmath.com

Mistakes That Knowledgeable People Make When Teaching

1) Confusing “conceptually simple” with “notationally compact”, and 2) jumping to the most general method right away.

Oct 18, 2024

other justinmath.com

The Importance of Automaticity is Blatantly Obvious Yet Weirdly Controversial In Education

Oct 18, 2024

other justinmath.com

Hand Computation, Conceptual Debugging, and Coding Projects

The 3 types of problems that I would have students work out back when I was teaching ML.

Oct 17, 2024

other justinmath.com

It’s kind of disappointing how many shitty takes on learning come from within the field of education itself.

Oct 17, 2024

other justinmath.com

Passing a Class at School Does Not Imply Having Learned All The Material

Oct 17, 2024

other justinmath.com

Simple, Representative Concrete Examples

When an algorithm or process feels magical, that’s typically an indication you don’t really understand what’s happening under the hood.

Oct 16, 2024

other justinmath.com

Love What You Do

If you don’t love it, you’ll never be able to keep up with the same volume of effective practice as someone who does have that love. You’ll never outwork them.

Oct 14, 2024

other justinmath.com

Complete Individualization: an Often-Forgotten yet Critical Component of True Deliberate Practice

There are many studies demonstrating a benefit of some component of deliberate practice, but these studies often get mislabeled or misinterpreted as demonstrating the full benefit of true deliberate practice. The field of education is particularly susceptible to this issue because it is impossible for a teacher with a classroom of students to provide a true deliberate practice experience without assistive technology that perfectly emulates the one-on-one pedagogical decisions that an expert tutor would make for each individual student.

Oct 12, 2024

other justinmath.com

Go Through the Question Bank Breadth-First, not Depth-First

An easy trick to improve your retention while working through a bank of review or challenge problems like LeetCode, HackerRank, etc.

Oct 11, 2024

other justinmath.com

ML Courses can Vary Massively in their Coverage

I was coming in with the mindset of “we need to cover the superset of all the content covered in the major textbooks,” which we’re able to do quite well for traditional math. For ML, the rule will have to be amended to “we need to cover the superset of all the content covered in standard university course syllabi.”

Oct 11, 2024

other justinmath.com

Top-down’s fine for playing around. You’ll run into walls, but don’t give up — go bottom-up to get unstuck.

A little rhyme to understand the big picture of top-down vs bottom-up learning, particularly in the context of machine learning (ML).

Oct 7, 2024

other justinmath.com

Just Do The F*cking Work

At the end of the day you can either waste time debating your coach on the training regimen, or you can use that time to just put your head down and do some f*cking work.

Oct 6, 2024

other justinmath.com

How Do You Increase a Student’s Ability to Make Mental Leaps?

Oct 2, 2024

other justinmath.com

Pictures are Valuable in Math Learning, but They’re Often Overvalued

Pictures can help build mathematical intuition, but sometimes learners think they should fully visualize every single problem they solve, which actually handicaps their thinking. Math involves generalizing patterns in logically consistent ways, and the generalizations eventually go beyond what you can fully picture in your head.

Sep 30, 2024

other justinmath.com

The Importance of Hardcore Skills

Hardcore skill development is necessary to do big things, it’s one of the greatest social mobility hacks, and it gives you the ability/confidence to take risks knowing that you’ll be okay.

Sep 29, 2024

other justinmath.com

Math Education is a War Zone

Sep 27, 2024

other justinmath.com

Career Hack: Put Pressure on Your Boss to Come Up with More Work For You

One of the best career hacks – especially for a junior dev – is to knock out your work so quickly and so well that you put pressure on your boss to come up with more work for you. Your boss starts giving you work that they themself need to do soon, which is really the exact kind of work that’s going to move your career forward.

Sep 26, 2024

other justinmath.com

Music Concerts: An Unexpected Setting to See Startup/Product Ideas in Action

Sep 25, 2024

other justinmath.com

A Thermodynamic Engine that Converts Mental Effort into Skills/Knowledge

Sep 23, 2024

other justinmath.com

The Future of Education

To quote a Math Academy student: “The fastest and most rigorous progress will be made by individuals in front of their computers.”

Sep 23, 2024

other justinmath.com

Spaced repetition is so similar to weight training that it might as well be called “wait” training.

The fuzzier that memory, the harder it is to lift. The wait creates the weight.

Sep 21, 2024

other justinmath.com

The Trick to Future-Proof Your Coding Career Against AI

Get yourself into an area that requires deep domain expertise, working on things that haven’t been done or even thoroughly imagined yet.

Sep 19, 2024

other justinmath.com

The “Progress Equals Pressure” Formula

Making progress is all about putting pressure on a problem: applying the force of your skills to a specific problem area (pressure = force / area).

Sep 18, 2024

other justinmath.com

Five Steps to Becoming a Fully-Fledged Quantitative Software Engineer

Once you get past steps 1-3, it’s hard to find scaffolding. You can’t just enroll in a course or pick up a textbook. The scaffolding comes from finding a mentor on a mission that you identify with and are well-suited to contribute to. And it can take a lot of searching to find that person and problem area that’s the right fit.

Sep 17, 2024

other justinmath.com

The Day of Reckoning in Math Learning

Sep 16, 2024

other justinmath.com

Why Talent Development is Necessary in Math

When students do the mathematical equivalent of playing kickball during class, and then are expected to do the mathematical equivalent of a backflip at the end of the year, it’s easy to see how struggle and general negative feelings can arise.

Sep 15, 2024

other justinmath.com

Don’t Undervalue Turning Up the Dial on Your Grind, but Don’t Overvalue the Last Turn

Regret minimization cuts both ways.

Sep 14, 2024

other justinmath.com

The Future of Proof-Based Courses on Math Academy

And why we refer to ourselves as still being “in beta.”

Sep 14, 2024

other justinmath.com

Frequent, low-stakes quizzes are such a powerful learning tool.

Sep 12, 2024

other justinmath.com

One of the Most Amusing Errors in Teaching

… is asking students to perform activities that leverage a non-existent knowledge base.

Sep 11, 2024

other justinmath.com

Why is there sometimes resistance to automaticity in education?

The need for automaticity on low-level skills is obvious to anyone with experience learning a sport or instrument. So why is there sometimes resistance in education? It makes sense if you think about what people usually find persuasive.

Sep 10, 2024

other itsfoss.com

11 Terminal File Managers to Explore on your Linux System

Love the terminal? You can manage all your files effortlessly using these terminal file managers on Linux. Better than the ls and tree commands.

Sep 10, 2024

other justinmath.com

Competition as a Means of Collaboration

The whole idea is that you want the other person to raise the bar on competition and pass you up, so that you’re motivated to come right back and do the same to them.

Sep 9, 2024

other justinmath.com

Writing is a Skill that Can Be Trained

Every time you put out a post, get feedback, make improvements, and carry those improvements forward into future posts, that’s essentially a “rep” of deliberate practice.

Sep 7, 2024

other justinmath.com

To date, the total amount that Math Academy has spent on paid X/Twitter posts is…

a flat $0.

Sep 5, 2024

other justinmath.com

What Implies Learning

Sep 3, 2024

other justinmath.com

Some Pitfalls to Watch Out For when Learning From Projects

1) Don’t use projects as a way to acquire fundamental skills. 2) Make sure the projects are guided. 3) Don’t let the projects cut too much into your foundational skill-building.

Sep 2, 2024

other justinmath.com

The “Alien-Level Skills” Hack

You get to provide value that nobody else can, and you get recognized for it.

Aug 31, 2024

other justinmath.com

You Are NOT Lazy, You Just Lack a Habit

The habit is a psychological force field that protects you from all sorts of negative feelings that try to dissuade you from training.

Aug 31, 2024

other justinmath.com

A White Pill on Cognitive Differences

It’s a hard truth that some people have more advantageous cognitive differences than others – e.g., higher working memory capacity, higher generalization ability, slower forgetting rate. However, there are two sources of hope: 1) automaticity can effectively turn your long-term memory into an extension of your working memory, and 2) many sources of friction in the learning process can be not only remedied but also exploited to increase learning speed beyond the status quo.

Aug 30, 2024

other justinmath.com

Why I Recommend Students NOT Take Notes

If you try to keep information close by taking great notes that you can reference all the time… that just PREVENTS you from truly retaining it.

Aug 30, 2024

other justinmath.com

Enjoyment is a Second-Order Optimization

Fun is a supplement, not a substitute, for deliberate practice.

Aug 29, 2024

other justinmath.com

Critique of Article: “The Problems With Deliberate Practice”

The article presents two claims of deliberate practice that it argues against – but the first claim is a misattribution, and the second claim is not actually argued against.

Aug 28, 2024

other justinmath.com

My Next Big Modeling Project: Behavior Coaching

Even if students are working on exactly the right things, they need to be working exactly the right way to capture the most learning from their time spent working.

Aug 27, 2024

other justinmath.com

Resolving Confusion about Deliberate Practice

Doesn’t “beyond the edge of one’s capabilities” mean that you can’t do it? How can you practice it if you can’t do it? Also, “performance-improving adjustments on every single repetition” is hard to understand in some realms of performance. For instance, does each step a runner takes involve feedback and improvement?

Aug 27, 2024

other justinmath.com

True active learning means…

every individual student is actively engaged on every piece of material to be learned.

Aug 26, 2024

other justinmath.com

It’s easy to think you know the prerequisites when in fact you don’t.

Aug 24, 2024

other justinmath.com

Q&A: Who Does What at Math Academy

Aug 24, 2024

other justinmath.com

Spaced repetition is more than memorization – it’s also generalization.

And if you want to get the most out of your review, you need to engage in spaced, interleaved retrieval practice.

Aug 23, 2024