As you gather background information and data keep a running list of relevant words, phrases, key concepts, and subjects you encounter to use in future searches related your specific assignment goals. Make a list of terms and their variations. Different authors use different terms and having this list will help you cover all your research bases.
NOTE: When searching, put quotes OR parentheses around phrases of more than one word -- "early childhood education" or (early childhood education) - to search for the phrase instead of the individual words separately.
Examples:
- preschool; preschooler; preschoolers; pre-K;
- infants; toddlers; (early childhood); "early childhood education"
- students; learners; kindergartners; (elementary students); "middle-school students;" (high-school students)
- (online education); "distance learning); (hybrid classroom)
- STEM; STEAM
- teachers; educators, "teacher assistant;"
- assess; assessment; assessments; (outcome-based education); competencies;