The "Fishing: Get in the Habitat! MinnAqua Leader's Guide" is a curriculum created by the Minnesota Department of Natural Resources for educators working primarily with children in grades three through five in formal and nonformal education settings. Like many agency-developed supplemental educational resources, the Leader's Guide is available through workshops and by mail. An evaluation was conducted on influences on curriculum use to inform future dissemination efforts, with the goal of maximizing use. Recommendations for MinnAqua and implications for environmental education are discussed. (Contains 7 tables and 2 figures.)