🎯Lock in $19.99 pricing before September 1, 2026· Save $10 on every full-credit subject through August. Pricing returns to $29.99 on Sept 1.· Ends Aug 31, 2026
Independent CBE-style practice — not affiliated with TEA, UTHS, or any school district

All Texas CBE Subjects

TEKS-aligned Credit by Examination (TEC §28.023 / TAC §74.24) practice — active, randomized question sets with fully worked solutions and unlimited timed mock exams. Free sample questions on every subject, no signup required.

Choose your subject

Full TEKS coverage per subject, with worked solutions and timed mock exams — both semesters wherever a course is split A/B.

Algebra 1

Credit by Exam · TEKS
Linear equations, inequalities, functions, quadratics, and polynomials. Covers TEKS §111.39.
$19.99 $29.99(33% off)· 6 months

Geometry

Credit by Exam · TEKS
Lines, angles, triangles, circles, proofs, and trigonometry. Covers TEKS §111.41.
$19.99 $29.99(33% off)· 6 months

Algebra 2

Credit by Exam · TEKS
Functions, polynomials, exponentials, logarithms, and conic sections. Covers TEKS §111.40.
$19.99 $29.99(33% off)· 6 months

Pre-Calculus

Credit by Exam · TEKS
Functions, trigonometry, sequences, conic sections, and analytic geometry — the bridge between Algebra 2 and Calculus.
$19.99 $29.99(33% off)· 6 months

Biology

Credit by Exam · TEKS
Cells, genetics, ecology, evolution, and body systems.
$19.99 $29.99(33% off)· 6 months

Chemistry

Credit by Exam · TEKS
Atomic structure, bonding, reactions, stoichiometry, gas laws, solutions, thermochemistry, and nuclear chemistry.
$19.99 $29.99(33% off)· 6 months

Physics

Credit by Exam · TEKS
Motion, forces, energy, momentum, waves, electricity, and modern physics.
$19.99 $29.99(33% off)· 6 months

U.S. History

Credit by Exam · TEKS
Colonial era through modern America — government, economics, geography, culture.
$19.99 $29.99(33% off)· 6 months

SAT Math

Credit by Exam · TEKS
Short daily SAT Math practice. Patterns over content. Built for your phone.
$19.99 $29.99(33% off)· 6 months

How it works

1. Practice actively

Randomized, timed question sets force active recall — the opposite of passively re-reading a textbook. Retry as often as you like.

2. See the worked answer

Every question shows a full worked solution. Math and science answers are machine-checked for accuracy, so you learn the right method.

3. Track weak spots

Per-TEKS accuracy shows exactly which standards to focus on before exam day, so your effort goes where it counts.

Built differently

What a textbook and a lecture cannot do.

Active recall, not passive reading

The engine makes students retrieve — the single most effective way to remember under exam pressure.

Every answer is worked

Math and science answers are machine-checked for accuracy; each question explains the method and why the tempting wrong choice is wrong.

Parent-friendly progress

Progress you can actually see, at a fraction of the cost of a tutor — built for Texas families preparing for Credit by Exam.

Frequently Asked Questions

What is the Texas CBE exam?

Credit by Examination lets a student earn course credit by passing a test instead of taking the class. There are two routes: the free district acceleration route (TEC §28.023, about 80% to pass) and the paid prior-instruction route through UTHS / Texas Tech K-12 (TAC §74.24, about 70% to pass). See our Credit by Examination guide for the full overview.

Are these real CBE exam questions?

No. Every question is independently authored by Texas CBE™ in the CBE/TEKS style. We do not reproduce any official CBE items and are not affiliated with TEA, UTHS, or any district.

What score do I need to pass?

The district acceleration route needs about 80%; the UTHS prior-instruction route needs about 70%. Policies vary by district, so always verify with your school counselor.

Do you cover the whole exam?

We cover the full TEKS-aligned multiple-choice exam with worked solutions and unlimited timed mock exams — both semesters where the course is split A/B. For social-studies subjects with essays, only the multiple-choice portion is covered.

Is there a free sample?

Yes — free sample questions on every subject, no signup required. Try before you buy.