"This was a huge shock, and it turned out that an unusual teacher was the culprit. She was a natural kindergarten and first grade teacher who was also a natural

"This was a huge shock, and it turned out that an unusual teacher was the culprit. She was a natural kindergarten and first grade teacher who was also a natural mathematician. She figured out just what to do with 6 year olds and was able to adapt other material as well for them. The results were amazing, and defied all the other generalizations we and others had made about this age group." What the heck was she doing? How many other people have it figured out but don't share it? Why isn't there an effectivity assessment on curricula or instructional word choice- "mindset" type stuff or whatever it is that actually works. I've tried the Betty Edwards printed material quite a bit and it is just amazing what you can do when you stop thinking about it in the same way. You can have a non-productive thought pattern getting in the way of understanding.