“Should we meet with primary and secondary leadership teams separately or together?” This question came up during a recent chat with Joe Barder, IT Director at AIS Lagos, when we were figuring out a strategy for building their data culture. A simple question, but it got me thinking a lot about the difference between organizational culture and organizational practices, and how we need to consider both when fostering change. At AIS Lagos, everyone is eager to dive in and start analysing data. However I also sensed some hesitation from Joe about jumping in without first establishing norms and shared practices. The question of whether to have data discussions at a whole school or division level is really about whether we want to start with targeted, relevant, and actionable sessions tailored for each group, or if we take the time to develop a whole-school shared understanding of what it means to be data-informed. In other words, do we focus on the culture or the practice? On on...