• Chad's Videos

    Chad's videos are widely recognized as some of the best science videos on the web. His DAT videos have been a mainstay for more than a decade. Learn from the best!

  • Quantitative Reasoning Quizzes

    Over 250 high yield quantitative reasoning questions arranged by topic.

  • Chad's Study Guides

    Taking notes is a breeze with Chad's study guides. Be organized and maximize the efficiency of your studies!

What are students saying...

Evan Heldt

5 star rating

“Thank you very much Chad. No one on the internet is as generous as you are with all of your resources. I thank you very much.”

“Thank you very much Chad. No one on the internet is as generous as you are with all of your resources. I thank you very much.”

→Read Less

dawon oh

5 star rating

“Thank you so much for providing high-quality videos with great explanations !!! ”

“Thank you so much for providing high-quality videos with great explanations !!! ”

→Read Less

Course curriculum

    1. START HERE...

    2. DAT Study Schedule

    3. OAT Study Schedule

    4. DAT / OAT QUANTITATIVE REASONING OUTLINES

    1. Numerical Calculations (1:05:41)

    2. Equations/Inequalities, Exponents, Logs, and Functions (43:35)

    3. Graphical Analysis & Applied Mathematics (34:35)

    1. Geometry & Trigonometry (42:01)

    1. Probability & Statistics (52:09)

    1. Data Analysis (24:06)

    1. Regarding Retired Quizzes

    2. 1 - Numbers (10 Questions)

    3. 1 - Fractions (8 Questions)

    4. 1 - Decimals (9 Questions)

    5. 1 - Comparing Fractions (9 Questions)

    6. 1 - Scientific Notation (9 Questions)

    7. 1 - Roots (10 Questions)

    8. 1 - Dilutions (5 Questions)

    9. 1 - Conversions (10 Questions)

    10. 1 - Solving Equations & Inequalities (10 Questions)

    11. 1 - Exponents (10 Questions)

    12. 1 - Logs (10 Questions)

    13. 1 - Ratios & Proportions (10 Questions)

    14. 1 - Quadratics & Polynomials (10 Questions)

    15. 1 - Functions (10 Questions)

    16. 1 - Simultaneous Equations (10 Questions)

    17. 1 - Graphical Analysis (10 Questions)

    18. 1 - Age and Rate Problems (10 Questions)

    19. 2 - Triangles (6 Questions)

    20. 2 - Rectangles & Squares (10 Questions)

    21. 2 - Circles (10 Questions)

    22. 2 - Uniform Solids (9 Questions)

    23. 3 - Permutations and Combinations (19 Questions)

    24. 3 - Probability (19 Questions)

    25. 3 - Statistics (9 Questions)

    26. 4 - Data Analysis (14 Questions)

    27. 4 - Data Sufficiency (15 Questions)

    28. 6 - Quantitative Comparison (10 Questions)

About this course

  • Over 4 hours of video instruction

Chad's DAT Prep

Chad's DAT videos, quizzes, & study guides. Chad's DAT Practice Tests are included for a limited time!

Chad's OAT Prep

Chad's OAT videos, quizzes, & study guides. Chad's OAT Practice Tests are included for a limited time!