1782-1852 1836-1920 1859-1917 1860-1931 1870-1952 1885-1948 3 5 administration aufsatzsammlung biography childcare childdevelopment communityandcollege curriculumplanning daycarecenters dk2000 ds7130 earlychildhoodeducation earlychildhoodteachers edu000000 edu000000edu023000 edu016000edu024000edu009000edu023000 education educationalpsychology educationalstatus educationandstate educators etc faculty friedrich fröbel general greatbritain hailmann handbooks history influence isaacs kindergarten manuals margaret maria mathematics mathematicsteachers mcmillan mentoringineducation methodsandmanuals montessori preschool professionalisierung rachel reference research schoolpersonnelmanagement socialconditions socialreformers standards studyandteaching(earlychildhood) studyandteaching(higher) susansutherlandfairhurst teaching trainingof unitedstates vocationalguidance vorschulerzieher workforce