last updated 14 APR 2025.

From OSSU computer science:

How can I review the math prerequisites?

Many OSSU students choose to review math topics that they have not studied recently. OSSU recommends to use a few resources for such a review: Professor Leonard for lectures, OpenStax for textbooks, and Khan Academy for assessments. After taking an assessment, you should have a clear idea of what topics to study and where you should start with the resources below.

Courses Lectures Textbooks Tutoring & Assessments
Prealgebra Prealgebra OpenStax Prealgebra 2e (PDF) Prealgebra Course Challenge
Algebra 1 To The Point Math OpenStax Elementary Algebra 2e (PDF) Algebra 1 Course Challenge
Algebra 2 Intermediate Algebra OpenStax Intermedia Algebra 2e (PDF) Algebra 2 Course Challenge
Precalculus Precalculus - College Algebra/Trigonometry OpenStax Precalulus 2e (PDF) Precalculus Course Challenge

When watching the lectures it is important that you pause before each question and work it out yourself, or try again after you understand the process. After you complete a chapters worth of lectures, you should complete the chapter review exercises found at the end of each chapter in your textbook. Use your grade to determine what you need to review. OpenStax orders their review exercises by chapter section, allowing you to hone in on what you need to practice. Practice what you have not mastered by:

  1. Going to the proper section in your textbook and working on the examples as they have full answer explanations.
  2. Rewatching Professor Leonard’s video on the subject, working through the examples with him.
  3. Searching YouTube for another POV on the topic, again working through the examples with them. Khan Academy & Organic Chemistry Tutor are great resources for this.
  4. Doing the section exercises in your textbook.
  5. Asking for help in the relevant Discord channel.

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  • HackTheBox Academy
  • AttackIQ (free)

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