Programmers have been using vim and emacs for about 40 years, and engineers have been using CAD tools for just as long. These tools automate the repetetive and boring aspects of programming and engineering, so that professionals in these fields can focus on the difficult and interesting tasks in their work. Leaders in these fields recognized some common needs, and built high-quality open tools so that everyone in the field could do higher-level work. When I use emacs, it knows whether I'm writing a Python script or editing an html file, and it makes both tasks as easy as possible. When I go back to these files later, they are easier to work with because they have structure to them, and the tools I use recognize that structure.
When I write a math lesson in Word, it has no idea that I have just created a math lesson. If I want to share my work with someone else, there is no easy way to do that. If I want to pull in the best math standards in the world to base my work off of, there is no easy way to do that.
I am working on software to address some of these long-standing issues in the education world. I hope I take these projects far enough that they end up on my tombstone.