Many school staff and their client communities are concerned about pupil achievement, skills, and attitudes related to mathematics. To respond to these concerns, staff need to determine how they can improve their elementary mathematics programs by modifying the content and skills emphasized in the curriculum, changing and supplementing instructional approaches, and changing the use of technology. In this digest, sources of curricular frameworks, sources of information on materials and programs which have evaluation data, and sources of information on promising programs and materials are discussed. Highlighted are the National Diffusion Network and the National Science Foundation. A list of four selected information sources with addresses is included. Eleven references are listed. (CW)