Cataloged from PDF version of article.This study investigated the students’ and teachers’ assessments about Main Course project work applied at the English preparatory classes of Yıldız Technical University (YTU) School of Foreign Languages Basic English Department. The students from upper-intermediate and intermediate levels studying English in the preparatory classes of YTU and the teachers who supervised their projects participated in the research. They were asked to assess Main Course project work in respect to three aspects: (1) Achievement of institutional project work goals, (2) Learning gains acquired from project work, (3) Problems experienced with project work accompanied by suggested solutions. Data were collected throu...