The first working paper of the Learning in Science Project (Primary)--LISP(P)--"Toward a Framework," outlined what was then seen (1982) as the major aim of the project and proposed a research plan that seemed capable of enabling the project to establish difficulties that teachers have teaching science, to identify difficulties children have learning science, and to explore ways of overcoming such difficulties. The plan included an exploratory phase, an in-depth phase, and a tentative action-research phase, with teachers involved in all project phases. Presented in this document is a reconsideration of the initial framework, reviewing the LISP(P) perspective on primary science, outlining a proposed primary science teaching model, and specifying steps in the formation of a research plan. The plan includes: (1) using the "interview-about-instances" (IAI) method to determine children's ideas about various science topics; (2) investigating children's questions and explanations on a topic using the proposed teaching model; (3) teachers executing the proposed teaching model (supported by information obtained from the IAI and from data on children's questions and explanations); and (4) development of teaching guides. A discussion of topics that should be the focus of LISP(P) research and (in an appendix) information for teacher-researchers who want to participate in the project are included. (JN)