Every concept on Gully Learn is a working lab. Pull it apart in 3D, break it on purpose, predict what happens, then check the maths. Notes, flashcards, quizzes and exams sit right next to the bench, across 15 subjects in one interface.
The Lorenz system
Two weather models that start 0.0001 apart.
Press “Start a second run”, then watch how long the blue and orange runs agree. That gap is why forecasts stop working after about two weeks.
Fifteen subjects. One bench.
The same interface carries you from SAT physics to IB chemistry to graduate linear algebra. Live labs are marked; open any subject to see its path.
Break it, then explain it.
Each lab is a model you can orbit, zoom and dissect. Lock in a prediction, run it, and see exactly how far off you were. Study material for the concept sits in the panel beside it.
Lab
How a lesson actually goes.
Not points and streaks. A loop that real scientists use: guess, test, get it wrong, find out why, change the model.
Trial
Before anything moves, you commit to a number. The period, the angle, the comparison count.
Doing
Sliders, drag handles and a 3D model you can orbit and take apart. Every control maps to a real variable.
Failing
The lab shows your prediction next to what happened and says which assumption broke.
Tinkering
Change gravity, swap the algorithm, shear the plane. Then find the case that breaks your new rule.
Study notes
Written against the lab you just used, at the depth you picked. Formulas sit next to the picture they describe.
Flashcards
Short recall prompts for each concept. The ones you miss come back first.
Quizzes
Every answer explains itself, including the wrong ones, so a miss still teaches you something.
Explainers
Short clips that run beside the bench, so you can pause the video and poke the model.
Assignments
Open problems you solve inside the lab: build a pendulum clock, find the matrix that fixes a line.
Exams
Timed papers modelled on SAT, IB and AP formats, marked the moment you finish.
A path, not a playlist.
Each subject is a lane you walk in order. Concept, lab, prediction, notes, recall, quiz, assignment, exam. Mark steps done and your progress stays in this browser.
Sit the exam whenever you’re ready.
A five-question timed drill drawn from every live lab. Same marking as the full papers: you see the right answer and the reason straight away.
Mixed drill
Physics, chemistry, linear algebra and computer science. Five questions, five minutes.
Questions appear here when you start. You can retake it as often as you like; the order changes each time.