I'm an expert on 3-D theory and practice.
I've been researching this model for 35 years since earning a doctorate in 3-D. Then, it was an esoteric, backwater subject. Parchment in hand, I returned to the classroom to keep going with 3-D because it obviously worked so much better.
I moved schools 12 times. Over the 35 years, I have taught every grade from 2nd to AP physics, always pushing 3-D. I've taught in small rural schools, inner-city, college town, suburban, charter, magnet - always working with colleagues on writing 3-D lessons. I did years of PD with schools around the country. I wrote many of the physical and earth science questions for the NGSS high-stakes tests used in 13 states.
Anything you want to know or do with 3-D, I'm the guy.