Secondary Education
Sometimes it is helpful to simply browse or search in the call number range for your specific area, to familiarize yourself with the titles. Consider:
BF712-724.85: Developmental psychology
LB1025 (varied): Training of teachers
LB1050.9-1091: Educational psychology
LB1603-1696.6: Secondary education, high schools
LD7501: Individual institutions in the U.S., secondary and elementary schools
LE3-78: Individual institutions in the Americas except the U.S.
LF14-5627: Individual institutions in Europe
LG21-961: Individual institutions in Asia, Africa, & Oceania