This document discusses becoming an evidence-based SENCO and making evidence-based decisions. It begins with an overview of effective SEN support and a definition of evidence-based practice. It addresses common misconceptions and highlights techniques for making evidence-based decisions, including asking well-formulated questions using the PICO format, acquiring evidence from various sources, appraising the strength of evidence, and aggregating evidence. It emphasizes acting on the evidence while assessing results through after-action reviews to continually improve practice. The key message is that evidence-based practice is essential in SEND but also presents challenges that can be addressed through reasonably straightforward techniques.