Learning 562 Global warming 169 Education 121 Learning, Psychology of 111 Organic farming 111 Teaching 104 Agriculture 98 Machine learning 92 Educational psychology 52 Learning disabilities 52 History 48 Psychology 46 Farming 41 Organizational learning 41 Climatic changes 39 Journal, Verbal Learning and Verbal Behaviour 35 Learning disabled children 33 Fish farming 32 Economics 31 Extension Education 31 Motivation 31 Agricultural Extension 29 Global Warming 29 Active learning 28 Agricultural economics 28 Cognitive learning 28 Agronomy 26 Dissertations, Academic (Ph.D) 26 Educational technology 25 Memory 25