After an introduction to the Boolean operators AND, OR, NOT, parenthesis and NEAR, students practice searches using a worksheet.

Although this site is designed for teaching efficient searching techniques, it provides an engaging tutorial on the Boolean operators AND, OR and NOT.

These worksheets cover many aspects of the research process, as well as censorship, web page evaluation and boolean operators.

The University of Michigan offers this reproduction of Bronson Alcott's work as part of their Making of America series. A search feature allows users to search using boolean operators or a proximity search as well as more basic keyword.