Flashcards
How it works



Traditional process
- Spend an hour writing out cards
- Run the whole stack, including what you already know
- Forget the hard ones again by next week
Our process
- Tap a subject — the deck is already built
- Your focus terms come up first
- Miss one and it comes back until it sticks
What’s in a deck
Real ones, from real courses. Terms and formulas — a half-remembered formula stops a question exactly the way a half-remembered word does.
Math 20-1
Determine
Find it — and show how. Most of the marks live in the working.Common error“State” — State wants the answer with no working.
Math 20-1
State
Just write it down. State asks for the answer, not the journey.Common error“Determine” — that one wants the working too.
Chemistry 20
Limiting reagent
The limiting one runs out first and caps the product. The excess is whatever is left over when it does.Common errorCalculating from the excess reagent. Every product calculation runs from the limiting one.
Chemistry 20
Mole ratio
Coefficients count particles, not grams.Common errorUsing coefficients as a mass ratio loses more marks than anything else in the unit.
Biology 20
Biomagnification
Concentration rising UP the food chain, level by level.Common errorBioaccumulation — that is buildup inside ONE organism. Magnification is across levels.
English 20-1
Controlling idea
Your claim. One sentence, arguable, and every paragraph must serve it.Common errorThe topic. “Isolation” is a topic. It claims nothing, so it cannot control anything.
English 20-1
Text creator
The person who MADE the text. A writer, a film-maker, a photographer.Common errorThe narrator — that is a voice the text creator invented.
Biology 20
NP = GP − R
Net primary production. The plant burns some of what it makes just staying alive.Common errorConsumers eat NET, never gross. Using GP is the classic error.
Math 20-1
Root / zero / x-intercept
Three names, one idea — the x values where y = 0. The exam swaps between them freely.
Why it works
Recall is the easiest thing to fix and the worst thing to be missing halfway through a question.