Sometimes it is necessary to search a phrase . Some search engines assume that the word AND appears between words. For example, a search for social studies would not necessarily return results that are relevant to the curriculum area Social Studies. A good example is the term math. An elementary teacher may want to do a search for lesson plans for a third grade math lesson.
Truncation allows the teacher to access Web sites that have information on math, mathematics, etc.
Here are several helpful resources that will help you become proficient. This site will teach you how to search the Web efficiently. This is a good site for trying the major search engines and viewing an analysis of each. This provides comparisons and descriptions of many powerful tools. This series of pages is designed to help students and teachers think about using the Internet for research in K-12 schools.