Dear teachers and students,
I find this article, written by one of my colleagues at MME/NIE (Maths & Maths Education at National Institute of Singapore), helpful to us in our teaching and learning of maths:
http://singteach.nie.edu.sg/math-ed.html
Personally, I have applied the five components in my classroom teaching, except that I did not unify them into a systematic framework as described by Dr Lee.
Enjoy!
Cheers,
Wen Shih