The advent of the computer has revolutionized the way we do things on a daily basis, in industry, business or education. Juxtaposing these successes with persistent student's poor academic achievement and negative attitudes towards Mathematics at all educational levels and in practice beats the logic of 'computer revolution' in education. Consequently, the integration of computer into Mathematics instruction is a concern to educators and researchers in Mathematics education and educational technology. Computer-Assisted instruction (CAI) has the capacity to catalyze a paradigm shift from the traditional teacher-centered to a constructivist approach. To promote the change, there is need to investigate the effectiveness of CAI in Mathematics education.This book reports findings of a study conducted towards this end. The book is therefore important to policy makers in Education, classroom teachers of Mathematics and researchers in Mathematics education and Educational Technology.