The BASIC Instructional Program (BIP) is an interactive problem-solving laboratory that offers tutorial assistance to students solving introductory programing problems in the BASIC language. After a brief review of the rationale and origins of the BIP instructional system, the design and implementation of BIP's curriculum information network are described. The most recently developed features of the BIP system are briefly reviewed. An annotated student dialog illustrates a typical BIP session. The results of an experiment comparing BIP with a fixed linear path through the same curriculum are reported. (Author/EH)