This document highlights areas of concern and proposes selected standards which, if implemented, could result in improved teacher preparation in the sciences and, ultimately, in improved learning experiences for children. These standards are intended to provide guidelines to institutions and agencies desiring to achieve minimal levels of quality in science preparation programs for preservice teachers of science for the elementary and middle/junior high school levels. Standards for the science preparation for preservice elementary teachers focus on the following areas of concern: science content preparation, science content courses for elementary teachers, science teaching methods, content of the science teaching methods course, field experiences in science, faculty preparation, facilities, equipment and materials, and professional orientation. Standards for the science preparation for middle/junior high school science teacher preparation focus on the following areas of concern: middle/junior high school teacher certification, science content preparation, support content preparation, science teaching methods preparation, classroom observation/participation, student teaching/internship, college/university science and science teaching methods faculty, instructional setting/materials, library holdings (at the college level), and professional orientation. (JN)