Of the fifteen or twenty initiatives that are a part of your classroom, which ones matter the most? Does cooperative learning matter more than technology integration? Does classroom management matter more than relationships? In a era of educational exhaustion, where we would love to have clarity in our efforts without initiative fatigue, it seems like we should know which ones matter the most. It doesn't mean that we should only pursue the most effective things on the list as a number of other factors including budget, community support, and faculty capacity impact what can be done well, but it does make sense to look at initiatives research to know their impact on learning and understanding. There are many opinions about the research of John Hattie, but the videos below could easily serve as a starting point for a conversation around what matters the most.