• 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

  • 01

    Outlines

    • START HERE...

    • DAT OAT QUANTITATIVE REASONING OUTLINES

  • 02

    1 - Algebra

    • Numerical Calculations (1:05:41)

    • Numbers (10 Questions)

    • Fractions (8 Questions)

    • Decimals (9 Questions)

    • Comparing Fractions (9 Questions)

    • Scientific Notation (9 Questions)

    • Roots (10 Questions)

    • Dilutions (5 Questions)

    • Conversions (10 Questions)

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

    • Solving Equations & Inequalities (10 Questions)

    • Exponents (10 Questions)

    • Logs (10 Questions)

    • Ratios & Proportions (10 Questions)

    • Quadratics & Polynomials (10 Questions)

    • Functions (10 Questions)

    • Simultaneous Equations (10 Questions)

    • Graphical Analysis & Applied Mathematics (34:35)

    • Graphical Analysis (10 Questions)

    • Age and Rate Problems (10 Questions)

  • 03

    2 - Geometry & Trigonometry

    • Geometry & Trigonometry (42:01)

    • Triangles (6 Questions)

    • Rectangles & Squares (10 Questions)

    • Circles (10 Questions)

    • Uniform Solids (9 Questions)

  • 04

    3 - Probability and Statistics

    • Probability & Statistics (52:09)

    • Permutations and Combinations (19 Questions)

    • Probability (19 Questions)

    • Statistics (9 Questions)

  • 05

    4 - Data Analysis

    • Data Analysis (24:06)

    • Data Analysis (14 Questions)

  • 06

    6 - Quantitative Comparison

    • Quantitative Comparison (10 Questions)

  • 07

    Retired Quizzes

    • Simultaneous Equations (10 Questions) Retired 8/10/21

    • Quantitative Comparison (10 Questions) Retired 8/10/21

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!