I would like to pass on what I have learned as a software developer in my last 20 years of career.

I believe you learn with practice especially when it comes to computer programming! The best way to equip student for professional software development market and transfer your knowledge is to peer code with them though the importance of basic concepts cannot be underestimated. Therefore developing a good understanding of fundamental concepts for a student and making them do a lot of practice through interesting and close to real world challenges would be a way to prepare them for this industry.