The Primitives of Precalculus
by Robert Curtis

Quadratic Equations - Quadratic Formula

  • P4: Quadratic Functions:
    • P4.3: Quadratic Equations:
      • P4.3.e: Quadratic Formula:
        • P4.3.e.1: ChalkTalk Help Movie
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Distance Calculus - Student Reviews

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Date Posted: Feb 28, 2020
Review by: Karen N.
Courses Completed: Calculus I, Calculus II
Review: Awesome classes! I was really weak with Calculus, so I retook Calc 1 and kept going into Calc 2. I feel like I finally understood Calculus. The finals were pretty thorough, but not nearly as stressful as the blue book exams. I highly recommend these courses!
Transferred Credits to: Various



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Date Posted: Mar 16, 2020
Review by: Malia K.
Courses Completed: Applied Calculus
Review: Course was good and fast. I don't like math so I can't say it was fun or anything. Grader was very nice. Software was ok.
Transferred Credits to: University of Maine



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Date Posted: Feb 25, 2020
Review by: Jessica M.
Courses Completed: Applied Calculus
Review: I highly recommend this course. I started the Kennedy School at Harvard with a last-minute admission, but my application required the Liberal Arts calculus course, so I had to finish the course in 3 weeks. Diane was an awesome instructor! The class was surprisingly interesting. If you need to take calculus fast, this is the program to use.
Transferred Credits to: Kennedy School of Government, Harvard University