Keywords are terms related to your topic.
They are the BIG IDEA WORDS.
The act of combining keywords, key phrases, common words and terms to conduct your searches is call a search strategy.
Two powerful search strategies are:
1.) Conducing a Boolean search that combines keywords and/or phrases using AND, OR, and NOT
Example Education AND technology
2.) Putting quotation marks around phrases to search for an exact phrase
Example: "College Board" or "Advanced placement"