Extending and Enhancing the National Library of Virtual Manipulatives as a National Teaching Resource for School Mathematics

该项目旨在扩展已经在为K-8年级学生建立基于网络的虚拟操作库（由NSF资助）方面所做的工作。 材料将开发服务等级9-12。 其他要增加的功能将是翻译成西班牙语和现有材料的配音，以及打印和保存学生作业的能力。 一套供教师使用的软件工具将使他们能够使用这些操作工具制作定制的网页，并制作可插入现有课程的小模块。 为教师编制的新教材将包括教学目标清单、建议的学习活动和评估工具。评价将调查人/计算机互动的质量、材料与当前教学法的相关性、所产生的教学效果以及建立材料用户社区的过程。 评估中要问的问题包括：项目是否增加了学生对计算机潜力的利用？ 它是否增加了学生对数学的感知相关性？ 它会增加在线用户之间的合作吗？ 准实验研究，观察访谈和调查将被用来回答这些问题。将通过已经承诺参与该项目的商业出版商、网络以及专业期刊和会议进行传播。

This project seeks to extend the work already being done (with NSF funding) on a web-based library of virtual manipulatives for students in grades K-8. Materials will be developed serving grades 9-12. Other features to be added would be translation into Spanish and voice-overs for existing materials, and the capability of printing and saving student work. A set of software tools for teachers would enable them to construct customized web pages using the manipulatives, as well as small modules ready for insertion into existing curricula. New materials developed for teachers will include lists of instructional objectives, suggested learning activities and assessment tools. Evaluation will investigate the quality of human/computer interaction, the relevance of the materials to current pedagogy, the effectiveness of the resulting instruction and the process of building communities of users of the materials. Questions to be asked in evaluation include: Does the project increase student access to the potential of the computer? Does it increase the perceived relevance of the mathematics to the student? Will it increase collaboration between on-line users? Quasi-experimental studies, observations interviews, and surveys will be used to answer these questions. Dissemination will proceed through commercial publishers who have already committed to this project, through the Web, and through professional journals and conferences.