摘要:The purpose of the study is to evaluate the efficiency of the computer science teachers’ guide prepared for the 5th Grade Computing Course in Turkey. Experiences of 111 teachers regarding the implementation process were gathered through a survey. The results revealed that the 5th Grade Teachers’ Guide to Teach Computing’ is a supportive material for the delivery of CS education. Most of the teachers found the activities and general framework of the lessons to be useful. Despite most of the opinions being positive, on some points, the teachers considerably criticized the activities contained within the guide. It can be said that the results of the study offer a roadmap to practitioners on how to develop an effective guide for CS teachers, and how to create effective learning activities and materials for students.