“…In this context, sense-making is a collective process that takes place in social interaction and negotiation by tools such as the use of language (Coburn, 2005). Developing a shared language is essential to school effectiveness since, being epistemic, it is rhetoric that determines our worldviews and consequently our practices (Marsh, Waniganayake, & De Nobile, 2013). Because reform implementation is an ongoing process, which entails the translation of new ideas into school practices, principals engaged in gatekeeping strategies while interpreting external demands as an opportunity to develop a common pedagogical language (Allen & Penuel, 2015;Matsummura & Wang, 2014).…”