20 thoughts on “Intro to Precalculus (Precalculus – School Algebra 1)”

  1. Professor Leonard, I just want to say thank you for your incredible services to society. In an era where everything is fast-paced, you take your time and teach us Mathematics so we can understand what we do. Because of you, there are thousands of people doing well in their studies and making progress in their lives. Your contributions also motivate many people to do better, as we understand there are still people out there who care about our learning and knowledge.

    To share some of the benefits I experienced from your contributions, I did your 'Calculus I' course way back in 2017, which helped me prepare for a research project in Advanced Macroeconomics (Level IV). It was a pre-requisite for me to receive a minimum of Credit in the course to clear coursework and go to the research component of my Ph.D. program. And I was able to achieve it mainly because of your course.

    Now, after finishing my PhD in Economics and securing a job, I am starting over from Pre-Calculus to get a clear grasp of concepts.

    As a request, please start uploading videos, general, if not math. It has been seven months since you have provided us with an update. Hopefully, all is well, and your house renovation is complete.

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  2. Hi! First off, these lectures are incredible. I'm teaching myself math because I regret my major in college. That being said, does anyone know where I could find practice problems for this level of algebra. I'm using Khan Academy right now (which is also great) but, I like the detail your videos go into more and Khan doesn't have as detailed examples.

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  3. Hi Professor.
    Is this a complete Precalculus course with all the Algebra I would need or should I look at all the Intermediate Algebra videos prior to watching these videos ?
    I have been out of school for a long time and will be taking Calculus in 3 Months.
    Thanks !

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