The problem of sex bias in textbooks, particularly at the elementary level, is treated in this report. Sexism is defined and discussed in relation to the current women's movement. Research findings, as well as examples taken from various texts, indicate sex stereotyping and discrimination in instructional materials. A list of available remedies and resources for those who want to challenge sexism in education is included. It is recommended that teachers take a more critical look at the materials they are currently using in their classrooms in an attempt to identify implicit sex bias and discrimination. (LL)