Implementing The Standards: A Core Curriculum for Grades 9–12
A three-year core curriculum is the most fundamental change proposed for grades 9–12 in the Curriculum and Evaluation Standards for School Mathematics (National Council of Teachers of Mathematics, Commission on Standards for School Mathematics 1989). The Standards document identifies a common body of mainstream mathematical topics that all high school students should have the opportunity to learn. Present curricula attempt to accommodate differences in students' backgrounds, interests, and educational goals through the selection of topics. Unfortunately, the narrow, trackable programs that evolve from this perspective restrict many students to arithmetic computation only and thus serve as an early critical filter to opportunity and careers. Within the proposed core curriculum, differentiation would occur primarily in the manner in which topics are treated. It would be based on the depth to which common topics are pursued, the degree of difficulty of exercises and applications, the level of abstraction at which ideas are discussed, and, of course, the pace of instruction.