Take a free diagnostic, pinpoint your weakest competencies, and drill exactly what you need to pass on your first try. No more guessing what to study.
Start with zero experience. Each course is ~3–4 hours, self-paced, and runs live in your browser — no install, no payment.
A 10-minute placement session maps your ability across every competency. No grinding topics you already know.
The engine picks questions at the exact edge of your ability. Correct → harder. Wrong → worked example, then retry.
Hit a knowledge gap? A 15-minute learning loop opens, closes it, then returns you to the original question stronger.
Your predicted score updates after every single question — not just when you finish a practice test, like most prep tools. When it hits the passing threshold, you're ready to book.
Three live views you get inside QuantegyAI: the adaptive engine picking your next question, a mastery map across every competency, and a readiness score that climbs in real-time as gaps close.
Which of the following equals i23?
The engine uses a 3PL IRT model — the same framework behind the SAT, GRE, and TExES itself. Every question carries a difficulty, discrimination, and guessing parameter. Your ability estimate updates after every answer, and the next question is chosen at the exact boundary where learning happens fastest.
Five years. Hundreds of students. 100% pass rate. Dr. Mienie Scholtz is a mathematics professor who built QuantegyAI after watching students fail expensive exams because their prep didn't target their actual gaps. Every question, worked example, and adaptive nudge comes from what she's seen move students from "not sure" to "passed."
🎥 Talk to Dr. Scholtz on Zoom →A growing list of teachers who built their certification prep with Dr. Scholtz.
Dr. Scholtz worked with me and I passed my certification exam!
I failed twice before finding QuantegyAI. The diagnostic showed me exactly what I was missing — I passed on my third attempt with a 268.
The 15-minute study loops fit into my lunch break. I studied for 3 weeks and passed the first time.
Her teaching methods helped me pass the 7-12 Math TExES state exam.
Dr. Scholtz and her team prepared me and I am a middle school teacher today!
The free diagnostic is always free. When you're ready to unlock full practice, choose a plan. Each exam is a separate one-time pass — including Praxis 5165.
Access granted within 1 hour of booking.
Need 30 seats? $499/yr → · Need 50+? Get a quote
Pass-or-refund: on the Retaker Bundle — meet the practice milestones, sit the 235 exam, and if you don't pass we refund it in full. See full refund terms.
Today, fully live: TExES Mathematics 7-12 (235) with 2,300+ calibrated items across the full TEA blueprint, plus a free Praxis Mathematics 5165 sampler and a free Core Subjects EC-6 math (291) lesson course. Now live: TExES Math 4-8 (115), TExES EC-6 Math (291), Praxis Core Math (5733), FTCE Mathematics 6-12, CSET Mathematics, ASVAB Math, GED Mathematical Reasoning, ACCUPLACER, and HESI A2 Math are all live — 11 exams with 9,000+ calibrated questions. On the roadmap: STR (293) and Special Education EC-12 (161).
Yes. Each exam's question bank is mapped to the framework published by the relevant agency (TEA for TExES, ETS for Praxis). For TExES Math 7-12 (235) that's the six TEA domains and twenty-one competencies; for Praxis 5165, the seven ETS content categories. Every item is tagged to a specific sub-competency so your gap report reflects the actual test blueprint.
QuantegyAI was built by Dr. Mienie Scholtz, a mathematics professor who has prepared students for the Texas teacher certification exams for the past five years with a 100% pass rate. The item bank was authored and reviewed against TEA framework descriptors.
Books and videos give every student the same material in the same order. QuantegyAI estimates your ability after each question and picks the next item from the zone where you actually learn — neither too easy nor too hard. You spend your study time where it changes your score.
No. QuantegyAI runs in any modern browser on phone, tablet, or desktop. Your progress syncs to your account so you can switch devices.
Your email and response history are stored in an encrypted database and used only to adapt the engine to you. The privacy policy covers this in detail.
Yes. Every live exam starts free: a 12-question diagnostic that maps your gaps, plus 20 adaptive practice questions — enough to see how the engine behaves on your specific strengths and weaknesses. No credit card.
If you buy the Retaker Bundle ($99), meet the practice thresholds, and do not pass the 235 exam, we refund it in full. The exact thresholds and submission steps are listed on the refund page inside the app. (The guarantee currently applies to the TExES 235 pass only.)
Yes. Each exam is a separate purchase — your progress, mastery estimates, and readiness score are tracked per exam so a Praxis prep cycle doesn't muddy your TExES estimate (or vice versa). The exam switcher inside the app lets you flip between them at any time.