My platform, then the question, then real Desmos. Nothing here is a mock-up.
12Student-produced response
The value of x is 150% greater than the value of y, and the value of y is 50% less than the value of z. If x, y, and z are positive and the value of z is p% less than the value of x, what is the value of p?
Math Module 2, question 12. 84% got it right, and the average time was 29 seconds.
What's inside
Four numbers. No fluff.
296
Hard SAT Math questions
The Module 2 level, across every topic. Each one with a Desmos way and a by-hand way.
Algebra
Advanced Math
Problem-solving
Geometry
296
Traps, named
Every question shows the wrong answer most students pick, and the exact slip that leads there.
Before you fall in
Not after
21
Desmos moves
Not "use Desmos". The exact move for each question, and one tap loads it into the built-in calculator.
Regression ~
Lists
Sliders
Intersections
19
SAT subtopics
Your progress map shows where you leak marks across all 19, so the last week goes on the right things.
Progress map
Retry wrong ones
How it works
One question. Five stops.
1
Try it first
Pick Desmos or by hand. A timer runs at SAT pace.
2
See the trap
The answer most students pick, and why it's wrong.
3
One tap to Desmos
The exact lines load into the calculator on the page.
4
The by-hand way
For the questions where your pencil is faster.
5
Your map
Right, wrong and not tried, across all 19 subtopics.
filter by the SAT's own 19 subtopics
pick Desmos or by hand, the clock starts
the exact Desmos lines, one tap to load
that's me
Meet the person behind it
Hi, I'm Ronak.
Master's in Applied Mathematics · 8+ years teaching · 2,100+ students
The students who score highest don't know more Desmos tricks. They know which question needs Desmos, which needs one line by hand, and which needs neither. The Bible is that judgement, written down for 296 questions.
"Desmos can get you to 800. Knowing when not to use it is what guarantees it."
Free on Instagram
Watch me solve them.
My four most-watched SAT Math reels. Same way of thinking as the Bible, one question at a time. Tap one to play it here.
The Bible has 296 more like these, each with the Desmos move and the by-hand way.
Score day, for real.
Shared by students and parents. Names hidden. Hover to pause.
1370 → 1560Math 750 → 790Math 650 → 7901530 totalMath 8001550 totalMath 7901520 total1540"A great tutor and guide"Math 7801510 totalMath 770"Couldn't have done it without you"Math 7601480 total
You sit the SAT on Nov 7 or Dec 5, and Math is where marks slip.
You're somewhere between 650 and 780 in Math, and it's the last few hard questions that stand between you and 800.
You use Desmos, but freeze on which move fits which question.
Skip it if
You're under 650 in Math. Build the basics first, then come back.
You want video lessons. This is a question bank you work through.
You want Desmos to do everything. It won't, and the Bible shows you why.
My own students are in their final week, and they're ready. Before every SAT, I share what I'd want them to have with everyone else too. This time that's my top 25 picks and a live class to go through them together. Both come free with your pass.
Ronak
Pick your pass.
Pay once. It switches off after your SAT. Nothing renews.
74 extra questions across the 25 question types I expect most. Built from the August, September and October SAT patterns, what College Board has been leaning on, and where my students won and lost marks. Answer key included.
Bonus 2 · Live class
The 25 picks, live with me
60 to 90 minutes: each pick, the theory behind it, and the Desmos move that cracks it. Thursday 5 Nov, 9:30 PM ET (Friday 6 Nov, 8:00 AM IST). The link comes by email.
The Nov 7 Pass stops selling on Friday, 6 November.Secure checkout by Razorpay · International cards accepted · Your password arrives by email right after you pay
