Congresses and conventions Planning 15 Teacher training 8 Technical education teachers 8 Training of 8 Vocational education 8 Management 7 Meetings 6 Special events 6 Engineering 4 Science 4 Convention facilities 3 Economic aspects 3 Active learning 2 Biology 2 Chemistry 2 Conference rooms 2 Congress 2 Etiquette 2 Group decision making 2 Manner and customs 2 Mathematics 2 Meeting 2 Methodology 2 Physics 2 Seminars 2 Social action 2 Spatial behavior 2 Trade shows 2 Committees 1