The trigger was a sick student who missed several weeks of classes because of hospitalization and asked me to provide her with educational material. Since she had internet access,

I wrote scripts for the former topic  "Fraction Equations" and tested them in the classroom too (then end class 8). The student came to her release and immediately wrote the exam very successfully with ( it was a very good student).

Then I used such scripts also with other similar topics. Some of them can be found here: fraction unequations, root equations, Bi-quadratic equations and polynomial division.

In computer science senior classes is programmed primarily in Java. Some projects, especially the initial lessons I present at this point.