Educational services, namely, conducting classes, seminars, workshops, conferences and conventions in the fields of teacher training for classroom teachers, learning assessment and classroom management, and distribution of printed and audio-visual course materials in connection therewith; consultation services to school districts and businesses in the education and learning assessment fields; [ development and dissemination of educational materials of others in the fields of teaching, learning assessment and classroom management; ] educational services, namely, conducting on-line exhibitions and displays and interactive exhibits in the fields of teaching, learning assessment and classroom management; [ arranging and ]conducting educational seminars, conferences, and conventions and providing facilities therefor