COMET: Cases of Mathematics Instruction to Enhance Teaching

9731428银COMET项目致力于创建和传播中学数学专业发展材料。这个项目由爱德华·西尔弗博士指导，位于匹兹堡大学，并与宾夕法尼亚州立大学的玛格丽特·史密斯博士签订了分包合同，涉及16个案例的发展，每个案例都涉及一个课堂课程，其中中学数学（6-8年级）的一个重要概念与一个具有认知挑战性的任务有关。这些病例将分为四组；每个集群中大约有四个案例，每个案例都与一个重要的数学主题相关。暂定聚类包括：解决二维和三维的测量问题；解决与代数相关的问题，作为模式和函数的研究；解决涉及比率、比率和比例推理的问题；并解决以数字和图形形式表示和分析统计数据的问题。项目案例将涉及使用类星体项目产生的材料和经验。此外，该项目将涉及nsf资助的实施中心（密苏里大学和EDC站点）和nsf资助的课程项目（连接数学，上下文数学和视觉数学）作为实施案例的现场站点。本课题的独特之处在于案例的使用基于实际实践，研究基础较强，并且涉及中学数学课程。COMET将在项目的第一年组织和主持一个小型会议（将在NSF举行），讨论案例及其在提高教师内容和专业知识方面的应用。此外，该项目的评估将包括对COMET案例对项目现场测试参与者（中学教师）的内容和专业知识的影响程度的形成性评估。

9731428 Silver The COMET Project is dedicated to the creation and dissemination of professional development materials in middle school mathematics. This project, directed by Dr. Edward Silver and located at the University of Pittsburgh, with a subcontract with Dr. Margaret Smith at The Pennsylvania State University, involves the development of sixteen cases, each involving a classroom lesson in which an important idea in middle school mathematics (grades 6-8) is linked with a cognitively challenging task. The cases will be developed in four clusters; with about four cases in each cluster, each related to an important mathematics topic. Tentative clusters include: solving measurement problems in two and three dimensions; solving problems related to algebra as the study of patterns and functions; solving problems involving reasoning with rates, ratios, and proportions; and solving problems involving the representation and analysis of statistical data in numerical and graphical forms. The project cases will involve the use of materials and experiences generated by the QUASAR Project. In addition, the project will involve NSF-funded implementation centers (the University of Missouri and EDC sites) and NSF-funded curriculum projects (Connected Mathematics, Mathematics in Context, and Visual Mathematics) as field sites for the implementation of the cases. The uniqueness of this project is in the use of cases based on actual practice and a strong research base and dealing with the middle school mathematics curriculum. COMET will organize and host a small conference (to be held at NSF) on cases and their use in the enhancement of teacher content and professional knowledge in the first year of the project. Additionally, the project's evaluation will include a formative evaluation of the extent to which the COMET cases have impacted the content and professional knowledge of the project's field test participants (middle school teachers).