Activity programs Education, Secondary 3 High school teaching 2 Learning 2 Lesson planning 2 Mathematics 2 Personnel management 2 Study and teaching 2 Training of 2 United States 2 Academic libraries 1 Acalculia 1 Acalculia in children 1 Active learning 1 Affective education 1 Arithmetic 1 Creative activities and seat work 1 Curricula 1 Curriculum 1 Dissertations, Academic (Ph.D) 1 Early childhood education 1 Education 1 Education, Elementary 1 Education, Preschool 1 Elementary school libraries 1 Emotions 1 English language 1 Environmental education 1 Environmental management 1 Environmental policy 1