The second learning module in a continuing education program for inservice school media specialists focuses on sex stereotyping and ways in which inaccurate ideas about sex differences are transmitted through instructional materials in exploring the following questions: (1) Why do school materials communicate sexist ideas and sex-role stereotypes? (2) How is the language of school materials sexist? (3) How do illustrations in school materials communicate sexism and sex-role stereotyping? and (4) What evidence of sexism and sex-role stereotyping is found in instructional materials? Six specific examples of false assumptions derived from innate sex differences are listed, along with ways in which those assumptions are communicated in instructional materials and literature. Examples of sexist attitudes as they are covertly perpetuated through grammar and language are given to increase the reader's awareness of the problem in such a way that instructional materials can be evaluated for their degree of sexist content. Tests and exercises on this module are included in the accompanying activity book. (FM)