I used to think that as long as my teaching techniques were exciting and educationally and philosophically sound, that people would see the merits of them and would rush to embrace them.What I've learned is that the culture of any institution, the norms that govern its day-to-day operations, are very strong. Schools have essentially been operating the same way for the past 90 years, so they are very resistant to change. One has to go about improving schools through involving everyone and slowly change the culture.