I have been in software industry since the programming language likes Cobol and Pascal were in use. Since then I had opportunities to work on C/C++ language and later in Java. I have been teaching school students on an 1:1 basis as well.
I see that most programming language books and online courses are way too complex for school kids to grasp and understand. The courses I am creating are clutter free and provides all fundamentals that enables the student to be better at programming.