I did read one of the articles. Of course, Mathematica ought to be a tremendous aid to learning mathematics, engineering and science. Here is the approach I would recommend.
1) Forget test generation, scoring and all that stuff for teachers. In fact, forget teachers.
2) Get Mathematica young and start learning it.
3) Write literate (with textual explanations) notebooks on whatever topics you find that interest you. But start with basic ones.
4) Write lots of notebooks.
5) You can make contributions and add value by using Mathematica's active and dynamic features to clarify existing math topics.
6) If you can find anyone to collaborate with or share notebooks that's great - but difficult.
7) Don't take no stinking PISA tests.
