Education is expanding to use the Internet as an extension of the classroom. There is a need to prepare and develop the nation''s teachers to meet the challenges of this trend. Professional development programs are now tailored to help teachers to ensure technology is brought to the learning environment. This book details an evaluation of a professional development program that integrated technology into the Middle Schools. It explores the associations between student s attitudes towards science and mathematics and their perceptions of the classroom learning environment. A comprehensive review of literature explains the field of learning environments and the scales used to measure the attitudinal perceptions of students. The book is noteworthy in that it evaluates the effectiveness of teacher professional development in terms of the quality of the classroom environments created by teachers. This book will be of value to professional educators, professional development trainers, and anyone interested in creating a worthwhile and long-lasting program for training middle-school teachers on the integration of technology into the curriculum.