I had guessed that I could continue to complete any course I had enrolled in. At least, any course I had started. I was wrong.
The nine courses in the Data Science package, all taught by the same Harvard Professor, were horrible. Well, the ones I got through, in any case. This professor is about the worst I have EVER seen at the post-secondary level. I was not surprised that the course was written around his book. At least I didn't have to pay for the book separately.
When faced with paying for these dreadful courses, I decided that Data Science was not for me. I posted some rather critical messages on the discussion boards, and one of the staff members tried to defend what I felt was a clear error.
Do you recall learning the "quadratic formula?" The one for finding the solutions to a quadratic equation. The latter being: ax^2+bx+c = 0. Quadratic is a word reserved for an equation with x^2, x, and a constant.
There was a series of values that were the result of an exponential equation but not precisely a quadratic equation. When I pointed that out to her, she said the equation they used resulted in the sequence, didn't it? Sure, it did, but that didn't make it quadratic. In the lecture, the professor said it's quadratic.
There was a mathematician who adopted the nome de plume of "student," and a statistical test he developed came to be called the "Student's T-test." The professor insisted on calling that "Student T-test." A Harvard Professor should know the correct name for that particular test. I posted that on the discussion board as well.
As soon as I accumulated enough points to pass the course and receive the certificate, they pushed me out of the course, and I arrived at the place where I could claim my certificate. There were some problems I had not completed, and I missed out on the opportunity to learn that part of the course.
There was one group of problems I simply did not understand. I decided to go through the course and request the answers to the problems I could not solve. I saved the source code for the correct answers, and in the end, I unenrolled from the course. I intended to take it over, and if the problems were the same, I would use the saved solutions as my guide. They postponed the following access to the course to a future date, which was after my scholarship was to expire. They really didn't like having me around.
For anyone familiar with CS50 at Harvard, the biggest course at Harvard in terms of the number of students. You know the professor's name: David Malin. He is the most amazing teacher I've ever seen, and I've seen a lot.
When that professor created another course, Malin offered enthusiastic words of promotion. I sent Malin an email about my experience and was not surprised that I did not get a response.
As part of my MBA program, I had to take a course in business statistics. Two teachers offered the course, and we were told that one was far more demanding. "How hard could business math be?" I asked myself. I signed up for the demanding teacher. I did get an A grade, but I learned that business math can, indeed, be HARD! I kept the textbook and still have it now, thirty-four years later.
A year after I got my MBA degree (paid for by Boeing Computer Services,) my wife enrolled in the same MBA program and asked me which business statistics teacher she should choose. I recommended the teacher I had and got hell for that from my wife. Like most students, she was there for the piece of paper while I was there for the knowledge I wanted to acquire. Eventually, she divorced me, but not for that reason. "Go know!" My wife had a bachelor's in Math from Brooklyn College and an MA in Math Education. She had been a math teacher at a Catholic Girl's High School and then worked for Computer Sciences Corp at NASA Goddard Space Flight Center.