Well, I think the author got a point here. There is no perfect solution for this problem, yes. Maybe for this student, this way works, but not for others. What

Well, I think the author got a point here. There is no perfect solution for this problem, yes. Maybe for this student, this way works, but not for others. What I am saying is First, if student don't even understand what is carAccerleration or carSpeed is, then how do you expect them to understand the X and Y term? Second, to explain an example, you may not use carSpeed or anything related to it at all, but why use X and Y while there are so many better names out there. It really depends on the context of the example trying to show. So my point is using carSpeed or carAccerlation as programming naming technique bad? Yes, it's bad. But using greek terms to show a student who are really bad at understanding things comes even worse. How we can explain them what is alpha, what is beta, etc I am not an official teacher at any school, but I volunteered to an educational organization to teach students about science experiments. The odd is there is a huge gap in knowledge in ONE class, students range from 6th grade to 9th grade. Student of 6th grade in class don't even know what is physics and chemistry (all stuffs they know is adding and substracting). My job is explaining to them what electromagnetic field is and how the tesla coil works. That's come to my point, you can't just throw to them a bunch of equations and tell them it is it. I had to solve this by breaking the term down into smaller pieces and didn't talk about any equations at all. After that, could I expect them know how to solve physics problems? Of course, it's not. But at least they had a push, and if you want someone to move forward, a small push is what they need (Newton's first law related). That is the 'A-hah' moment. One more point, if you have read 'A Brief History of Time' of Stephen Hawking, you'll see he barely used any complicated terms or equations in his book (he did use, but not much), he just explain things and break it down into small pieces so even non-physiscal peoples will understand. And in conclude, if it's for generalize things, then an equation with greek terms is needed. However, to explain things to student who are bad at math and really need help, there is so many better ways to name terms in math examples instead of using greek letters.