A behavioral skills training package was used to train 5 teachers to correctly implement discrete-trial teaching. The mean baseline proportion of possible correct teaching responses for Teachers 1, 2, and 5 increased from 43%, 49%, and 45%, respectively, during baseline to 97%, 98%, and 99%, respectively, following training. These data indicate that the training package consisting of instructions, feedback, rehearsal, and modeling produced rapid and large improvements in the teachers' implementation of discrete-trial teaching.