Original sentence: For UWC-IB Initiative in BiH aims to become a strong reference point for educational reform in the country and actively works on the building of capacity of teachers from across BiH, it established the Centre for professional development of teachers in BiH which organizes series of workshops and study trips throughout the year, seeking to increase the capacity of BiH educators to become agents of change – teachers exposed directly to international practices and practitioners, and to the clearly identifiable features of the IB (guidelines on objective external assessment, academic programme innovation, study methods including the writing of research essays, a strong focus on laboratory work in natural sciences and the teaching of other language and literature within an international context).It is strongly committed to the professional development of Bosnian teachers as a key contribution towards national educational reform and is following a policy within the College of entrusting an increasing number of posts and senior responsibilities to Bosnian staff as soon as they are qualified and ready.The College was launched in 2005 with a substantial number of international teachers experienced in the IB
Edited sentence: It is strongly committed to the professional development of Bosnian teachers which is seen as a key contribution towards national educational reform and is following a policy of entrusting an increasing number of posts and senior responsibilities to Bosnian staff as soon as they are qualified.The College was launched in 2006 with a substantial number of international teachers experienced in teaching the IB.To implement the aim of the UWC-IB Initiative and enhance the capacity of teachers from across BiH, the Initiative established the Centre for Professional Development of Teachers in BiH which organizes series of workshops and study trips throughout the year,  teachers exposed directly to international practices and practitioners, and to the clearly identifiable features of the IB