“…In school systems worldwide, studies have indicated that heads of departments (HoDs), described as both instructional leaders and subject matter experts, often direct curriculum change and professional learning (Alsaleh, 2019; Daresh and Male, 2001; Kelley and Salisbury, 2013; Klar, 2012; Kruger, 2003). School leaders can also facilitate other factors that contribute to professional learning in schools, such as building cooperative teams and a collegial community of practice (Carney, 2000; Graham, 2007; Printy, 2008).…”