What students say about our courses.

finished in about 6 weeks

Never felt like homework.

code and biology together

I'm in AP Bio and had no real idea this is what bioinformatics actually is. Finding the single letter behind sickle cell myself, in code, was unreal.

my favrite part is when the sign turns on

my game!!

i have a real game that i made and i can play it. thats it thats the review

CTFs are addictive

Spent an entire Saturday on one flag. Got it eventually.

honest about how hard this actually is

I came in half expecting a get rich quick thing. Its the opposite. A good chunk of the course is about why your backtest is lying to you, and I learned more from that than from any of the strategy stuff. There's a lesson where they show you a backtest with insane returns and then make you find out why its fake. After that I started noticing the same mistake in half the trading videos I used to watch.

W course

we did DNA in science this year and i already knew what a codon was bc of this. my teacher was confused lol

Everything is in a closed lab, which my parents needed to hear before they'd let me do it. You're not touching anything real, the targets are all simulated.

finally understand what an AMM is

I'd read about a hundred threads on DeFi and understood none of it. Building a liquidity pool in Python and watching slippage actually happen made it obvious in one lesson. The whale lesson right after is even better.

lowkey humbled by the break even lesson. i thought you just sell shirts and get rich

the one day late lesson broke my brain

actually builds something real

The clothing brand thing sounded weirdly specific at first but margins, pricing, forecasts and inventory is literally what real companies need software for. I get why they did it that way now. The road to $1M lesson is the one I'd show somebody. You write like eight lines and it tells you what month the company gets there, and then you change one number and its way later. I didnt expect a coding course to make me think about that.

snake. the tail is literally just a list. genius

did not know you could hide a message in the last bit of every pixel in a picture. you cant see any difference in the image at all. thats the lesson i told everyone at lunch about and nobody cared lol the final challenge is the best part tho. you have to scan the target, find the weak service, get in, and then peel like three layers off the payload with the decoders you wrote earlier in the course. took me two evenings. i wish the hints were a little less obvious sometimes but otherwise 10/10

better than i thought

my mom signed me up and i was kinda mad about it ngl. but free cookie friday was actually fun and i did 3 lessons in one day. im on the recipes part now and its getting harder but like in a good way edit: finished it. still good

harder than the other courses

Good but definately do a Python course first. I had to look things up a lot. Still finished it and the part where you read the logs to find out who broke in made it worth it.

the bakery one is so fun

i made the sign say my name and my brothers name and it worked!! my favorite was counting the cookies

asteroid patrol is sick

the lasers took me forever to get working but when they finaly fired i actually yelled. my mum came in to check if i was ok

my first website that doesnt look terrible

good course 👍

Good, slow start

Some background, I'd done a little JavaScript before this so I wasn't a complete beginner. Because of that the first couple modules felt slow. It's a lot of variables and if statements with a t-shirt company wrapped around them, and I was clicking through pretty fast. It gets way better in the second half. The lesson where you simulate a thousand seasons to figure out how many shirts to make was the first time I understood why anyone would use code for a business decision instead of a spreadsheet. Would be 5 stars if the early part let you skip ahead when you already know it.

COSMOS turned out great

Showed my friends and they assumed I used one of those website builders. Nope, typed every line of it.

Started with zero Python. By the end I was writing functions without looking things up. The sales data part is where it properly clicked.

OK so this course has six games in it and I thought that meant six tiny things but they are actual games. My favorite is Paddle Ball because its two player and me and my little brother play it for real now. I changed it so you need 10 points to win instead of 5 because 5 was over too fast. The hardest one for me was Sky Hopper. My bird kept flying up forever and never coming back down and I didnt get why for like two days. It was one number. ONE. Anyway its fixed now and I'm on the asteroid one.

I MADE SNAKE!!!!

The defensive side is underrated. Everyone wants to be the attacker, but the lessons near the end where you go through the login logs and work out which account got breached, and then follow what the attacker actually took, are the part I got good at. Thats most of what real security jobs are anyway, from what I've read.

identifying the unknown sample at the end felt like actual lab work

fun but brick breaker goes on forever

Really enjoyed it and all the games work. Brick Breaker is 4 whole lessons though and I got kind of sick of it by the end, I just wanted to get to the space one. Sky Hopper only gets 2 lessons and thats the one I wanted more of.

I made the cupcakes fall super fast and it was impossible. Then I made them slow and it was to easy. Finding the middle was the fun part.

x times y equals k. thats the whole exchange??

Its good and I finally get flexbox. I just wish I could of picked my own topic instead of everybody building the same space site. You do get to change colors and the wording and stuff but its still COSMOS.

so pretty

i made the sun purple

Everyone uses the same frozen data so you cant fool yourself. Smart.

I already knew a tiny bit of python from a youtube video but I never actually finished anything, I would just copy what the guy typed and then forget it. Here you have to type it yourself and guess what it will print BEFORE you run it, which I got wrong a lot at the start. I finished the whole bakery program and it runs. Took me about 3 weeks doing it after school. The price tags lesson was my favorite because before that I had two lists and they kept getting mixed up.

Fun and getting a flag feels great. Taking off a star because its all simulated, so you never use the real tools like nmap or wireshark, you write mini versions of them in Python. I get why (its for teens and its safe) but by the end I wanted a little more of the real thing.

built my own toolkit

By the end you have a folder of scripts you wrote yourself. Decoder, cracker, scanner, all of it. Thats a better thing to come away with than a certificate tbh

robot factory!!! i made 48 robots with like 4 lines

the card that lifts up when you hover >>>>

solid, wish there was a part 2

Well structured and I learned a lot. It stops right when it gets interesting though, you build the Product class, do the investor pitch and then its just over. Would do a part 2.

my school teaches java and i was struggling with it. did this over the summer and java makes way more sense now, its the same ideas underneath

sky hopper is the best one

Fascinating subject and taught well. You do need some Python going in, it says intermediate and it means it, so I had to stop and learn string slicing properly first. Hoping theres a Biotech II at some point.

real API data

Pulling live NASA data into a page I built myself was easily the best part. That's the point where it stopped feeling like a school exercise.

The part where you check if two things are touching made more sense to me than anything else I've learned in coding. Its just checking if two boxes overlap. I thought it would be way harder than that.

good prep for AP CS

Took this before AP Comp Sci A. Loops, functions and lists were already familiar so I wasnt lost the first month like half my class.

i made a poster for my room

its fireworks in random colors and every time i press run its diffrent. my dad printed one and its on my wall now

its good i like the cookies 🍪

played it with my cousin

we did the two player one and she beat me 5 to 3 which was annoying. but then she asked how i made it so thats a win

great, but hard on an ipad

The lessons are great and I learned a lot about variables. Only thing is I do it on an ipad sometimes and the symbols are really annoying to type, like the brackets and the quote marks. On my dads laptop its completely fine.

The randomness is my favorite bit. You write it once and it makes something new every single time. I ran my fireworks like 40 times to find the best one.

No wallets, no real money, no hype. Just how it actually works.

way better than the block coding at school

At school we just drag blocks around and its kind of boring. This is real typing. When I got the order line working I made my whole family come and look.

i love the ladybugs 🐞🐞🐞

wanted more than one stock

Good, but its all on Apple's price history. Makes sense for learning, I just wanted to point my strategy at other stuff too. Part 2 maybe?

Do Python for Kids first!! I didnt and had to go back

I'm way more of an art person than a computer person and my aunt got me this because of that. It was a good way in. You still learn loops and lists and all that, you just see shapes instead of text. The city at night was my favorite. Every window decides by itself if its lit or dark, so the city looks different every time, and I kept running it just to look. I'm doing the regular Python one next and I dont think I would of tried it without this first.

10/10 would bake again

suprise specials is the best lesson

Dense. I had to redo the lending and liquidation lessons twice before it stuck. Worth it, but this isn't a casual one.

drawdown

Max drawdown changed how I think about risk in general, not just in markets. Before this I only ever looked at how much something made at the end. A strategy can finish up and still be one you never could have sat through, and the course makes you look at that number before the return.

honestly thought this would be babyish because it says for kids, but the last few lessons were actually hard. good hard though

Really interesting but heavy on the maths. Im fine with that, just know what you're signing up for. Do a Python course first, definitely.

Good course. Its pretty easy at the start though, the first few lessons are just putting shapes in places. I liked it way more once the loops started. I'd do another one like it if they made one.

The predict before you run thing is annoying at first and then you realize thats the whole point. I stopped just running code to see what happens and started actually thinking first.

I tried learning web dev from youtube twice and both times I ended up with a half finished todo app and no idea how to make anything else. This went differently because you build the same site the whole way through. Every lesson adds a piece, nav bar, hero, cards, the gallery, and by the end its a full site and you know where everything goes. The responsive lesson was the big one for me. I honestly didnt know you were supposed to start with the phone layout. Also small thing but there's a part where you make it show a backup message when NASA's server is down, and nobody ever taught me to think about that before.

It was harder than I thought. Not bad harder, just I had to redo some parts. The power up one I did three times before it worked.

cookies!!

i printed 100 cookies by accident lol

it can read the lesson out loud to you. i like that

good but I needed help sometimes

I liked it alot!! the only thing is sometimes I didnt know what to type and I had to ask my mom. but the receipt one was cool becuase it added everything up by itself

The live preview is what makes it. Change one thing, see it right away.

Good course overall. Only gripe is early on some of the error messages were hard to make sense of when I got stuck. You get used to reading them.

good, but tailwind takes getting used to

The course itself is really well made. Tailwind confused me for the first few lessons because its just SO many class names to take in. Once it clicked it was way faster than writing normal CSS.

the yield question

The thing that stayed with me is the course keeps asking who is actually paying for the yield. Once you start asking that, a lot of crypto looks pretty different.

made my own version

after i finished i went back and changed all the prices and made it a pizza place insted of a bakery. it still worked which was cool

made me sure I want to do cybersecurity in college

its one big project not a bunch of random exercises, i like that

shield is op

made the starting shield last forever so i cant lose. my brother says thats cheating

The components part is useful outside this course too. I went back and redid an older project of mine the same way and its so much easier to change now.

butterflys

i made a whole butterfly parade with a loop instead of typing it 20 times

password123

watching my own code crack a hash in like one second is why i dont use short passwords anymore

Things actually move on the screen instead of just words coming out. Thats what I liked.

Good. Wanted more JavaScript though, its mostly HTML and styling.

Really good for starting out. I did it in about a month, a few lessons a week. The reason for 4 stars is I just wish it was longer. I finished the last lesson and wanted to keep going with my bakery and there wasnt any more. Doing the game one next.

my dad works in finance and he was surprised how legit the material was. we ended up arguing about transaction costs for an hour

worth it

Took me about 2 months. Worth it.

good if you have never coded

I tried scratch before and got bored. In this one you type everything yourself so it feels more like actual programming. The ones where the code is broken on purpose and you have to fix it are my favorite. There was one where the allergy warning never showed up and it took me forever untill I saw why. Felt like a detective.

did this after python for kids. way nicer to look at

the first one I've actually finished

I've started a bunch of coding things and never finished any of them. Scratch, a roblox thing, some app my cousin showed me. I think the difference is with this one you get a game you can really play every couple of lessons, so you keep wanting to get to the next one. Cupcake Catch is done by lesson 2. By the time it gets hard you already have like three games so you dont want to quit.

fun and not too hard