The Mathematical Inquiry Videotapes: Tools for Professional Growth

Ricky Carter Bolt, Beranek, and Newman, Inc。剑桥，麻萨诸塞州数学探究录像带：专业成长的工具这是一个为期三年的项目，开发和传播大约10个20分钟的录像带，用于中学数学教师的职前和在职课程。这些磁带处理了当教师试图将探究性学习引入课堂时出现的问题，并侧重于：(1)使用技术作为支持学生调查的有效工具；(2)教师在促进学生关于数学的对话中的作用。每盘磁带都强调一个特定的问题，比如：探究型任务的特点；对结对和小组工作的管理；何时干预？等。这些录像带尽可能地“非舞台化”——展示的是真实的老师和真实的学生在真实的教室里。它们基于主要课程项目的pi认为特别适合说明探究学习的各个方面的课程片段。除了课堂镜头外，每盘录像带还展示了教师对录像带上所述问题的反思。这些磁带将在各种情况下试行，包括对教师的电视广播、区域夏季讲习班、学校现场讲习班等。一个国家顾问委员会，以及一个外部评估人员，在开发的各个阶段监督录像带的开发——从最初的脚本大纲到原始视频片段，再到试点测试，再到最终编辑的产品。完成的包——包括录像带和相应的印刷材料——将提供给美国国家科学基金会资助的教师提升项目，并通过EdCo（大波士顿学区联盟）、MCET（马萨诸塞州教育电信网络）和一家私人出版商提供给其他人。分摊费用为121,600美元，占国家科学基金捐款总额的11%。

ABSTRACT ESI 92-54485 Ricky Carter Bolt, Beranek, and Newman, Inc. Cambridge, MA Mathematical Inquiry Video Tapes: Tools for Professional Growth This is a 3-year project to develop and disseminate some 10 20- minute video tapes for use in pre- and in-service programs for middle school mathematics teachers. The tapes deal with problems that arise when teachers try to introduce inquiry-based learning into their classrooms, and focus on: (1) the use of technology as an effective tool for supporting student investigations; and (2) the role of the teacher in facilitating student conversations about mathematics. Each tape highlights a particular issue, like: characteristics of inquiry-oriented tasks; management of pair- and small-group work; when to intervene? etc. The tapes are as "unstaged" as possible--featuring real teachers with real students in real classrooms. They are based on pieces of curriculum that PIs of major curriculum projects have identified as being particularly suited for illustrating various aspects of inquiry learning. In addition to the classroom footage, each tape also shows teachers reflecting on the issues illustrated on the tape. The tapes are to be pilot-tested in a variety of settings, including television broadcasts to teachers, regional summer workshops, school-site workshops, etc. A national Advisory Board, as well as an outside evaluator, monitor the development of the tapes throughout the various stages of development--from initial script outlines to raw video footage to pilot-testing and on to the final edited product. The completed packets--consisting of a video tape and appropriate accompanying print material--will be made available to NSF-funded teacher enhancement projects, and to others via EdCo (a consortium of greater Boston school districts)), MCET (the Massachusetts Educational Telecommunication Network, and a private publisher. Cost sharing is $121,600, which is 11% of the total NSF contribution.