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Each one runs the same Sathi teaching loop.
Master chemistry from atoms to equilibrium
Topic outline — full breakdown coming with the next content update.
Pick a goal — you can switch anytime.
How does the periodic table actually work?Quickest startPopular with curious minds · visual learners27 concepts · ~3.5hWhy do atoms stick together?Popular with AP Chem students · science curious48 concepts · ~6.5hI need to balance chemical equationsPopular with homework help · lab prep67 concepts · ~9hStoichiometry is destroying mePopular with pre-med · AP Chem · exam prep78 concepts · ~10.5hHow do reactions release energy?Popular with engineering · physical chemistry88 concepts · ~12hGas laws, solutions & phase changesPopular with college chem · engineering students92 concepts · ~12.5hWhat makes an acid an acid?Popular with bio majors · pre-med · nursing103 concepts · ~14hAce General ChemistryThe complete pathPopular with final exam prep · AP Chem · college gen chem128 concepts · ~15hFull course page →112 video lessons included
Every SAT Math skill — algebra, functions, geometry, stats, trig
Topic outline — full breakdown coming with the next content update.
Pick a goal — you can switch anytime.
Nail the Algebra coreQuickest startPopular with score 500-650 math15 concepts · ~7hData + Geometry pushPopular with score 600-750 math27 concepts · ~12hMaster Digital SAT MathThe complete pathPopular with first-time testers · score 500-750 math52 concepts · ~24hFull course page →49 video lessons included
Reading comprehension, evidence, and the conventions of standard English
Topic outline — full breakdown coming with the next content update.
Pick a goal — you can switch anytime.
Grammar & Punctuation Quick WinQuickest startPopular with beginners · short timelines8 concepts · ~5hMaster Digital SAT Reading & WritingThe complete pathPopular with first-time testers · score 1000-150029 concepts · ~18hFull course page →25 video lessons included
From everyday forces to relativity — understood, not memorized
Pick a goal — you can switch anytime.
How does sound travel?Quickest startPopular with High school · AP-intro7 concepts · ~5hWhy does anything move?Popular with High school · AP-intro · JEE foundation14 concepts · ~8hWhy do lenses bend light?Popular with AP-intro · JEE foundation15 concepts · ~9hWhere does energy go?Popular with High school · AP-intro · JEE foundation21 concepts · ~12hWhat really happens in a crash?Popular with AP-intro · JEE foundation25 concepts · ~14hWhat is electric current, really?Popular with AP-intro · JEE foundation30 concepts · ~16hHow do things spin and orbit?Popular with AP-intro · JEE foundation29 concepts · ~17hThe complete physics journeyThe complete pathPopular with JEE foundation · AP-intro · Curious minds69 concepts · ~40h · ≈13 wks at 3h/wkFull course page →50 video lessons included
The whole physical world — felt first, then understood. Interest-first, NCERT + US aligned.
Pick a goal — you can switch anytime.
What floats, what waves?Quickest startPopular with NCERT class 9 & 11 · General physics · Curiosity learners12 concepts · ~6hThe universe's deepest secretsPopular with NCERT class 12 · Wonder-driven learners · AP Physics 2 prep11 concepts · ~6hLight, circuits, and heatPopular with NCERT class 10 & 12 · AP Physics 2 prep · General physics22 concepts · ~11hWhy does anything move?The complete pathPopular with High-school physics · NCERT class 9-11 · AP Physics 1 prep29 concepts · ~14hFull course page →55 video lessons included
Algebra, calculus, vectors and more — one deterministic course for JEE Advanced and AP
Topic outline — full breakdown coming with the next content update.
Reactions, equilibria, and physical chemistry — for JEE Advanced and AP
Topic outline — full breakdown coming with the next content update.
Practical math you actually use — algebra, geometry, statistics, calculus — plus how money, debt, and the economy really work
Pick a goal — you can switch anytime.
Shapes & SpaceQuickest start21 concepts · ~8.4hEveryday Math Confidence22 concepts · ~8.8hData & Judgment22 concepts · ~8.8hThe Essence of Calculus29 concepts · ~11.6hMoney & Decisions33 concepts · ~13.2hUnderstand the EconomyThe complete path50 concepts · ~20hFull course page →75 video lessons included
The living world, connected — body, food, genes, disease, and ecology
Pick a goal — you can switch anytime.
Why do you look like your parents?Quickest startPopular with the genetically curious · future biologists31 concepts · ~4hHow does all life connect on Earth?Popular with nature lovers · the environmentally curious33 concepts · ~4.3hWhat is life made of?Popular with curious minds · visual learners47 concepts · ~6.1hWhat actually happens when you get sick?Popular with future doctors · the health-curious59 concepts · ~7.7hWhat happens to the food you eat?Popular with the food-curious · everyday learners63 concepts · ~8.2hHow does your body actually work?The complete pathPopular with future doctors · the health-curious64 concepts · ~8.3hFull course page →AP Biology — cells, genetics, evolution, ecology, and the big ideas
Pick a goal — you can switch anytime.
What is life actually made of?Quickest startPopular with AP Bio students · pre-med · curious minds5 concepts · ~3.5hHow does a cell build and power itself?Popular with AP Bio students · visual learners21 concepts · ~12hHow is life inherited and expressed?Popular with AP Bio students · pre-med37 concepts · ~21hI need to ace the whole AP Biology examPopular with AP Bio students · exam-prep · pre-med63 concepts · ~34h · ≈11 wks at 3h/wkI'm preparing for NEET BiologyThe complete pathPopular with NEET aspirants · medical-entrance · pre-med154 concepts · ~80h · ≈27 wks at 3h/wkFull course page →Become the kind of person who can build — and finish.
Coming soon — this course isn’t open for enrolment yet.
23 video lessons included
Reactions, mechanisms, and synthesis — from functional groups to named reactions
Topic outline — full breakdown coming with the next content update.
Coming soon — this course isn’t open for enrolment yet.
Designing with and for AI — the languages that connect human intent and machines
Coming soon — this course isn’t open for enrolment yet.
Run your own cloud and become the Keeper of everything in it - your machine, your data, your projects. Security, taught by safely breaking it.
Coming soon — this course isn’t open for enrolment yet.