The Developmental Mathematics Collection: Extending the NSDL with content and knowledge syntheses on exemplary practices for Developmental Mathematics

数学（21）对数学发展材料的需求日益增长。一个由加州社区大学教师组成的团队一直致力于重新设计发展数学课程，他们收集并创建了实际操作材料的动手活动，供学生在课堂和实验室环境中使用。这些资源正在以适合教授发展性数学课程的教师使用的方式提供和分类。《发展数学文集》及其相关网站提供了一个汇集此类资源并使其更广泛使用的机会。在全州互补性努力的基础上，该项目将建立一个发展数学教师社区，他们与其他教师在线共享资源，在其发展的形成阶段获得反馈，并通过增值注释和审查这些数字资源是否适合发展数学的特定课程水平来交换知识。该网站将托管一个元数据记录，将集合的每个主要元素编目，包括以下信息：标题、URL、描述、资源创建者、教育程度和主题关键词。集合中的资源可通过公共课程标签（例如，预代数，初级代数，中级代数），在程序，课程，课程和活动水平的教学内容知识，以及职业或个人兴趣领域进行搜索。

Mathematics (21)There is a growing need for developmental materials in mathematics. A team of California community college faculty who have been engaged in redesigning courses in Developmental Mathematics have collected and created hands-on activities with tangible manipulative materials for use by students in lecture and lab settings. These resources are being made available and categorized in ways suited for use by instructors who teach developmental mathematics courses. The Developmental Mathematics Collection and its associated website provide an opportunity to aggregate such resources and make them more widely available. Building on complementary state-wide efforts, the project will build a community of Developmental Mathematics faculty who share resources online with other instructors, for feedback in their formative stage of development and for exchanging knowledge via value-added annotation and review of the suitability of these digital resources for specific course levels in Developmental Mathematics. The site will host a metadata record that catalogs each major element of the collection with the following information: title, URL, description, resource creator, education level and subject keywords. The resources in the collection are searchable by common course labels (e.g., Pre-algebra, Elementary Algebra, Intermediate Algebra), by pedagogical content knowledge at the program, curriculum, course and activity level, and by areas of vocational or personal interest.