This practicum addressed the need to provide training in basic early childhood education subject areas to Head Start teachers and teacher assistants. A trainer of trainers approach was implemented because of the large number of teachers involved (approximately 1,300 in the Los Angeles County Schools Head Start grantee programs). Goals for supervisors attending the training included increased ability and desire to train staff, increased knowledge of workshop subject matter, and increased commitment to the supervisor role. Features of the three and one-half day training conference included a manual entitled "Exploring Teaching of Young Children," presentation of eight workshops, and a half-day training session focused on improving supervisory skills. Sections of the manual correspond to workshop sessions and focus on exploring the classroom environment, observing children, developing an individual education plan, individualizing the curriculum, choosing and sequencing activities, recognizing the value of play, guiding and supporting children, and using language with children. Almost all the participants used at least some of the material in training teachers, and some presented the full program of lessons to their staff. Related materials are appended, including the conference manual. (Author/RH)