One more comparison to making changes in existing instruction....
About 50 years ago an educational researcher named John Goodlad wanted to do a comparison study to see which instructional programs were most effective. Different schools had adapted different programs and trained their teachers to follow those programs, so you would think that all he had to do was compare the results. Goodlad went a step further, though, and went into the classrooms. He found that whatever program the teachers had been trained to use really didn't matter. Once they were in the classroom on their own, they reverted to what they had always done, which was basically a repeat of how they themselves had been taught when they were students.
About 50 years ago an educational researcher named John Goodlad wanted to do a comparison study to see which instructional programs were most effective. Different schools had adapted different programs and trained their teachers to follow those programs, so you would think that all he had to do was compare the results. Goodlad went a step further, though, and went into the classrooms. He found that whatever program the teachers had been trained to use really didn't matter. Once they were in the classroom on their own, they reverted to what they had always done, which was basically a repeat of how they themselves had been taught when they were students.