Ask HN: What do you do today that you wish was taught in your CS course?

What I wish wasn't taught is Calculus. I suspect many people are drawn away from Computer Science because of all the Math that's required. In my opinion, people can comprehend Discrete Mathematics without having to pass four or five advanced courses beforehand.

Linear algebra and numerical methods.

I wish I had a better math background, and I wish I was taught both the importance of testing and how to write useful tests.

Start a project from scratch (more of the architecture side of things).

CI/CD