Do you think the Singapore method at one point was a fad (or new math teaching methodology) and if not, why or how not? Secondly -- You say "Teaching math is e

Do you think the Singapore method at one point was a fad (or new math teaching methodology) and if not, why or how not? Secondly -- You say "Teaching math is easy." What does that mean? Just from personal experience, 10 years or so ago I took Calc 1 and 2 in high school, and calc 2 again in college, and did well in all, and know how to integrate and differentiate and use various formulas due to a recognition of certain inculcated patterns, however would I say I am skilled at actually using calculus as any sort of real life thinking/problem solving tool? Absolutely not and not even close. Is this a success? Absolutely not. One of the most important things was completely overlooked by the "traditional" method I was taught in.