This study examined effects of 1-session training to increase 2 targeted teacher language behaviors: use of Socratic (open-ended) questions and length of turn-taking conversations with low-income preschoolers. Teachers, matched in 21 pairs for education, age, and training in early childhood education, were assigned to E (experimental) or C (contrast) group. Classroom observations of language interactions were taped (via a microcassette recorder hung around each teacher's neck) in pretest observations. Then, in small groups, E teachers attended a 2.5-hr intensive and interactive language enhancement workshop. Classroom observations were taped 2 weeks later. At that time, after their training session, E teachers' turn-taking conversation lengths were significantly longer than C teachers, F(1, 40) = 7.22, p = less than 0.01. When the E and C teachers were observed in the classroom 3 months later, E and C teachers did not differ in either of the targeted language interaction techniques. Changing teacher language interaction patterns may require more intensive and extensive sessions as well as ongoing in-classroom supports. (Contains 3 figures and 5 tables.)