The document defines over 100 terms related to school and education, including the types of schools (e.g. elementary, primary, secondary), subjects taught (e.g. math, science, English), staff roles (e.g. teacher, principal, janitor), facilities (e.g. classroom, playground, cafeteria), and other concepts (e.g. homework, grades, holidays). Each term is defined concisely in a sentence or two and many note equivalents between American and British English. The terms provide comprehensive coverage of vocabulary related to the K-12 school system and learning environment.