How Lumini helps with SAT Math
SAT Math isn't like school maths. The questions are designed to be solved quickly — often in under a minute. There's always a shortcut. But finding that shortcut while staring at a practice test on Khan Academy or a PDF is hard. You end up solving things the long way, running out of time, and missing questions you actually know how to do.
Lumini sees your SAT practice screen. Hold Ctrl+Option and ask "Is there a faster way to solve this?" Lumini looks at the exact question — the equation, the graph, the answer choices — and tells you the shortcut. "You could solve this system by substitution, but notice that answer choice C is the only one where x + y equals 7 — you can eliminate A, B, and D immediately." That's the difference between spending 90 seconds and 20 seconds on a question.
The Desmos advantage
The digital SAT includes a built-in Desmos graphing calculator. Most students don't use it to its full potential. Lumini sees your Desmos screen and teaches you tricks: "Type the equation into Desmos and look at the x-intercept — that's your answer. No algebra needed." These Desmos shortcuts can save minutes across the Math section.
Tutor mode for SAT practice
Turn on Tutor mode while working through a practice section. After you answer a question and pause, Lumini gives feedback: "You got it right but there was a faster way — you didn't need to solve for both variables. In systems of equations, always check if adding or subtracting the equations gives you the answer directly." Over time, you internalize these speed strategies.
When Tutor mode sees patterns — you keep missing "interpreting linear functions" questions — it tells you. "You've missed three questions about what the slope represents in context. Let me explain — on the SAT, slope always means rate of change. The key is identifying what's changing per what."
Example questions to ask Lumini
- "Is there a Desmos trick for this?"
- "Why is B wrong? I narrowed it down to B and C."
- "What topic is this — is it Heart of Algebra or Passport to Advanced Math?"
- "How do I avoid the trap answer on this question?"
- "Can I backsolve this by plugging in the answer choices?"
How Lumini automates your SAT prep
Say "Create a note with the Desmos tricks for quadratics." Say "Remind me to take a full practice test on Saturday at 9am." Say "Search the web for hardest SAT Math questions 2026." All while staying on your practice screen.