This Information Bulletin contains an introduction and three articles on preschool education. The introduction notes the unsolved problem of providing care outside the home for children below the school age of seven, day care and preschool education being the alternatives considered. The first article "Pre-school Education in Finland" recounts circumstances which led to the appointment in 1970 of the Committee for Pre-primary Education to define and plan preschool education and describes the results of that committee's efforts. The second article, "The Pre-school Experiment," describes a few early attempts at preschool education, made at the descretion of municipal school systems during the sixties, and preschool experimentation evolving from the mandate of the Committee for Pre-primary Education and utilizing the results of that earlier experimentation to define a year plan for curriculum to be developed under practical experiment conditions. The third article contains short summaries of research studies, combined with the experimentation programs to ascertain the effects of group size, duration of instruction, and supervision and control on the children's development. (JH)