During the 1979-1980 school year Project Primary Reading Objectives for Bilingual Education (P.R.O.B.E.) was involved in improving the rate of reading growth and cognitive development of four and five year olds from the Bronx, New York. In bilingual classes that were conducted primarily in Spanish, the 153 program participants received instruction that emphasized oral language readiness for reading; sensory-motor coordination; training in reasoning; cultural heritage; self-concept; and a language experience approach to curriculum areas. P.R.O.B.E. was evaluated through observations by a consultant and through pre- and post-test data from the Boehm Test of Basic Concepts. Both the pre-Kindergarteners and Kindergarteners exceeded the expected level of achievement. The consultant found that the program successfully created a stimulating and effective learning environment. (MK)