Literacy Lessons for Logan Learners (LL4LL) is a project operating in the Logan region of south-east Queensland. It focuses on literacy innovation in the middle years of schooling, involving students from diverse cultural, linguistic and low socio-economic backgrounds. The project is also building teacher capacity, establishing professional learning communities, and developing a process for school improvement that can inform policies and processes in many Australian schools that serve socially disadvantaged communities. An earlier article in Curriculum Leadership described the background to LL4LL, its processes and early outcomes. The current article reports on further lessons learned as teachers and principals develop their capacity to interrogate data and reflect on their current instructional practices. It also suggests ways that schools might use data visualisations to focus collective attention on instructional problem solving at the school level.