From diagnostic to printed workbook in 30 minutes.
Most prep platforms hand you a generic question bank and hope you find your weak spots. We do the diagnosis for you, explain every wrong answer, and hand you the exact 25 problems you need to drill — on paper or screen.
1. Take a 15-minute diagnostic
The diagnostic spans all four Digital SAT domains: Algebra, Advanced Math, Geometry & Trigonometry, Problem-Solving & Data Analysis on the math side, plus the four Reading & Writing domains. Questions adjust to your level so we land on a real signal in fewer than 20 problems.
DSAT format. 22-minute timer. No login required for the sample diagnostic.
2. See exactly what you missed
Your score report breaks down accuracy by chapter — not just by domain. If you got 80% on Algebra but missed every Linear Inequalities problem, you'll see that on a single screen.
For every wrong answer, you get a custom explanation:
- What concept the question was testing.
- Why the answer you picked was tempting (the misconception you fell for).
- The cleanest path to the correct answer, step by step.
No canned explanations. No generic "the answer is C." Each analysis is written for the specific wrong choice you made.
3. Get a workbook tailored to your weak spots
Based on your diagnostic, we generate a printed-quality PDF workbook with:
- 25 problems pulled from the chapters you actually missed.
- A mix of same-difficulty (reinforce) and one-step-up (stretch) problems.
- A reference page with the rules and patterns you need to know.
- Full answer key with worked solutions and the same kind of detailed analysis at the back.
Print it. Bring it to your tutor. Or work through it yourself with the digital companion.
4. Re-test when you're ready
Take the diagnostic again whenever you've worked through the workbook. The diagnostic and workbook regenerate around your current gaps.
What's covered
The same chapter set as the official Digital SAT and PSAT family — 19 Math chapters and 11 Reading & Writing chapters — calibrated by grade so a Grade 8 PSAT 8/9 candidate sees the foundation tier and a Grade 11 SAT candidate sees the full set.