Magister Educationis - MEd / Heterogeneous school communities are becoming more apparent under local and global conditions. A school community is more diverse and similar, not only racially but also in respect of economic, cultural, national and ethnic identities. Schools would require leaders who are mindful of the need for conflict sensitivity and social reconciliation within a globalising classroom.Through the lens of critical constructivism, I investigated the extent to which a higher education institution achieved the aims of the ACE in School Leadership, a continuing professional development programme. I relied upon a qualitative research approach to gather rich descriptive data from interviews conducted with nine school leaders who had graduated from the ACE School Leadership programme. The Literature Review is based on readings regarding critical constructivism, globalisation, conflict‐sensitivity and reconciliation.I found that the programme expanded the school leaders’ basic knowledge about conflict sensitivity and social reconciliation, but not sufficiently in terms of developing a critical consciousness to deal with conflict effectively. I concluded that conflict‐sensitive schools required school leaders that produced knowledge critically through a rigorous process of engagement and reflection. The ACE School Leadership programme had limitations in the extent to which it could prepare and equip school leaders in this regard. / South Africa