Thank you for clarifying about not having all 1s be high students and all 4s be low students. I came away from my training a week ago with that same question as I'm now trying to process everything and make a plan for my third graders come September.
Once we do have our teams of 4 heterogenous students, how do you recommend that we assign them their 1A, 2B, 3C, and 4B numbers? A few ideas come to my mind, such as starting half the teams with the 1s being high (1:H, 2:HM, 3:LM, 4:L) and the other half of the teams with the 4s being high (1:L, 2:LM, 3:HM, 4:H).
I could also start team one with the 1 being high, then starting team two with the 2 being high, and team three with the 3 being high, and finally team four with the 4 being high. I'd repeat that pattern as many times as necessary until I finished with my 6-8 teams (depending on class size, of course). This would make as heterogeneous a mix as possible of each number. For example, if I wind up with 7 teams, my 1s would be 2 highs, 2 high-mediums, 2 low-mediums, and 1 low.
Is there any research on how this works best or is it really up to individual teachers to figure out what might work in their own rooms? What would Kagan recommend?
Thank you so much for your help!