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Fly through a cell, orbit a black hole, and explore two dozen more worlds, most of them in 3D.
Animal cellCell Voyage · Biology
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twice as fast.
nerdy finds your gaps, then teaches them on a whiteboard, out loud. For the SAT, ACT, AP or any class.
Transcript: Here is the equation we want to solve. We want the values of x that make this true. The plan is to factor it into two brackets, then use the fact that a product is zero only when one factor is zero. We need two numbers that multiply to twelve and add to negative seven. Negative three and negative four do both, so they give us the brackets. If two numbers multiply to zero, one of them must be zero. So we set each bracket equal to zero and treat them as two small equations. Now add three to the first one and four to the second. Each time, we do the same thing to both sides, so x ends up alone. Let’s check x equals three. Nine minus twenty-one plus twelve is zero, and sixteen minus twenty-eight plus twelve is zero too. Both work, so the idea to keep is this: factor, then set each factor to zero.
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Learning that feels like play.
Explore subjects in 3D, and learn through games you can’t put down.
A new puzzle every morning.
Start with today’s puzzle, then play Word Forge. Explore a whole arcade of games that teach you while you play.
Today’s puzzle
12+35=47
9×8−4=68
6×7+8=50
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Learn something amazing, every night.
Tonight’s fact opens a whole world for you to explore.
Tonight’s wonder
The Moon is 3% lit tonight, a waxing crescent, and it is racing along its orbit at about a kilometre every second.
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Quizzes that build mastery and earn XP towards your next level.
MasteryBy subject
- Math84
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3Level 3 · 120 XP to go
Build a study habit, ten minutes at a time.
Miss a day and the streak starts over.
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Everything for exam day, in one plan.
Your exam, your date, your weak spots. Your plan keeps track for you and tells you what to do next.
Always know what to study next.
Pick your exam and a goal. Every session strengthens your weakest skill.
Build my exam planFind your gaps in eight questions.
A short diagnostic scores every SAT Math domain, so you know exactly where to start.
Diagnostic report · SAT Math560Estimated530–590
Goal700- Algebra35% of the test✓ Linear equations✓ Systems↺ Inequalities
- Advanced MathStart here↺ Quadratics↺ Nonlinear functions✓ Exponents
- Problem-Solving & Data Analysis15% of the test✓ Ratios & percents✓ Statistics✓ Probability
- Geometry & Trig15% of the test↺ Right triangles↺ Circles✓ Area & volume
A countdown to the big test.
Official SAT, ACT, PSAT and AP dates, built in.
Learn from every wrong answer.
See why it’s wrong and ask your tutor in one tap. Misses come back for review over the next days and weeks.
SAT Math · Ratios & percentages
A $60 jacket is discounted by 25%. What is the sale price?
- A$15
- B$45
$15 is the discount, not the price: $60 − $15 = $45.
Good instinct to find 25% first! That $15 is what comes off. So what’s left to pay?
Solve it yourself, one step at a time.
You pick each next step. If you choose the wrong one, nerdy shows you why it fails.
Linear equations · move 1 of 3
3x + 8 = 29
ASubtract 8 from both sidesBAdd 8 to both sides
Still balanced, but now x is even farther away.
Practice like it’s the real exam.
Timed or untimed, with a checkpoint every seventh session.
AP Physics 1 · Forces
A 3 kg cart feels 15 N to the right and 6 N to the left. What is its acceleration?
- A2 m/s²
- B3 m/s²
- C5 m/s²
- D7 m/s²
Net force 15 − 6 = 9 N, and 9 N ÷ 3 kg = 3 m/s².
Free plan$0
- 5tutor messagesAsk, snap or talk
- 1lesson previewChapter 1, on the whiteboard
- 15minutesIn the worlds and exam practice
Resets every day at midnight
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Draw it, and talk it through.
Any subject, at your level, on a whiteboard, out loud.
Any topic, taught on the board.
Name it and watch it drawn, step by step, out loud.
- Diagrams drawn right on the whiteboard
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Get help in your own words.
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Snap a photo of the problem.
A photo, a PDF, your notes or a sketch. nerdy reads it and walks you through it.
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Got it · 2x + 3 = 11
- 1Undo the + 3 first: take 3 from both sides.
2x = 8 - 2Now what’s left to undo? Try it, I’ll check.
x = ?
Six ways to learn any topic.
Watch it drawn, talk it through, explore it in 3D or get quizzed.
Whiteboard
Try it on tonight’s homework.
Snap a problem or start a whiteboard lesson. Free, no card required.
Good questions.
Yes, no card needed. Free gives you 5 tutor messages, a whiteboard lesson preview and 15 minutes of worlds and exam practice every day. Plus ($24.99 a month, or $15.83 a month billed yearly) unlocks every lesson chapter with 30 lesson minutes a month, text or voice, and no timer on the worlds; Pro ($99.99 a month) adds far more messages and lesson time. Buy right here (Buy nerdy).
A chatbot hands you text. nerdy runs the whole loop: a diagnostic to find your gaps, a countdown to your real test date, whiteboard lessons taught out loud, worlds to explore, and review that brings back what you missed.
Yes. Snap a photo, drop in a PDF or text notes, or sketch your question on the board, and ask nerdy anything about it.
You see the reasoning behind it, and one tap on “Ask my tutor about this miss” takes it straight to your tutor. Missed questions come back for review over the following days and weeks.
Full tracks for SAT Math, AP Biology, AP Physics 1 and ACT Science; starter tracks for SAT Reading & Writing, AP Chemistry and AP Precalculus; plus a class-test mode that practises one SAT Math or AP Biology topic toward your test date. The real SAT, ACT, PSAT and AP dates are built in. The tutor helps with any subject.
It’s built to teach. Lessons go step by step, the exam lessons make your child choose each next move themselves, and missed questions come back for review, so the learning is theirs.
Any student, from middle school all the way through college. Tell nerdy your grade and every explanation, example and question is pitched at your level.
Yes. Tap the mic to ask by voice, or go hands-free and have a real back-and-forth conversation in the voice you choose.
Interactive simulations and games across biology, chemistry, physics, space, earth science, math, history and English, most of them in 3D. Each has hands-on modes; most add missions or challenges, many end with a quiz, and you can ask the tutor about what you see.
