Dissertations Mathematics Study and teaching Dissertations, Academic 51 Educational technology 9 Computer-assisted instruction 7 Mathematics teachers 5 Science 5 Study and teaching (Secondary) 5 Computer assisted instruction 4 Teachers 4 Audio-visual aids 3 Problem-based learning 3 Study and teaching (Primary) 3 Teaching 3 Arithmetic 2 Attitudes 2 Concept learning 2 Education 2 Graphic calculators 2 Learning, Psychology of 2 Metacognition 2 Problem solving 2 Teacher effectiveness 2 Ability testing 1 Algebra 1 Basic education 1 Computer algorithms 1 Constructivism (Education) 1 Creative thinking 1