"Handbooks and manuals" . "Handbooks and manuals"@en . . . "Middle grades education : a reference handbook" . . . "Middle grades education a reference handbook"@en . . . "Electronic books"@en . . . . "This work is a guide to the development of the middle school model as the best educational environment designed to address students' developmental and social needs as well as educational needs. It includes learning activities for all instructional strategies including differential instruction."@en . . . . . . . . "Aufsatzsammlung." . . "USA." . . "Enseignement moyen Guides, manuels, etc." . . "Middle school." . . "EDUCATION Secondary." . .