I am in agreement with the above. However, I think the use of discrete mathematics needs to be spread throughout the entire curriculum. Expecting kids to progress intellectually just because you force feed them formulas is a bit on the ridiculous side.I was one of those who never managed to "get" mathematics in school. Mostly because of the teaching methods utilizing rote memorization. My conceptual learning style just didn't allow me to absorb the information without proper applications. It took a very dedicated college professor to show me how easy mathematics can actually be when you know exactly what you are trying to do, and why.
I think that the proper implimentation of conceptual teaching methods would solve at least some if not most of our math problems in primary and secondary education.
The author's idea that math be treated as an optional subject kinda bothers me. Yes you can treat it as a form of art, and it helps if you don't stifle the creative tendencies of those few who are already interested in math, but a general understanding of math is a necessary component for understanding many other things in this world.