Synthesizing Rational Number Reasoning for Urban Schools

城市学校综合有理数推理

• 批准号: 0758151
• 负责人: Jere Confrey
• 金额: --
• 依托单位: North Carolina State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-08-31 至 2009-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0758151&HistoricalAwards=false
• 关键词: Synthesizing; Rational; Number; Reasoning; Urban

Successful preparation for and passage of algebra remains a major gateway to pursuit of science, mathematics and technology related careers. Students in urban settings in rational number reasoning (RNR), including multiplication and division, fractions, ratio reasoning, scaling, similarity, and the related ideas of decimal and percents. This configuration of topics is also known as the Multiplicative Conceptual Field (Vergnaud, 1983). This project will synthesize the research literature in this area to strengthen urban practitioners' knowledge of how to prepare students for this critical filter (Sells, 1973). It will implement an innovative approach to construct a new resource base composed of three interrelated elements: a) a bibliographic database of studies with coded and searchable characteristics and abstracts, organized into a visual web of authors, works, and topics, b) a data cube of RNR topics, types of reasoning skills, and grade bands that maps the rich array of assessment items used in these studies to national standards, and c) a synthesis of the work into a conceptual corridor in both visual and narrative formats. The project will interlink these databases to permit teachers to follow an effective conceptual sequence as much as can be identified, while generating relevant assessment items for their students, and identifying related readings for their own professional development.

为代数的成功准备和通过仍然是追求科学，数学和技术相关职业的主要门户。 在有理数量推理（RNR）的城市环境中的学生，包括乘法和分裂，分数，比率推理，缩放，相似性以及小数和percents的相关思想。 主题的这种配置也称为乘法概念领域（Vergnaud，1983）。 该项目将综合该领域的研究文献，以增强城市从业者如何为学生准备这种关键过滤器的知识（Sells，1973）。 It will implement an innovative approach to construct a new resource base composed of three interrelated elements: a) a bibliographic database of studies with coded and searchable characteristics and abstracts, organized into a visual web of authors, works, and topics, b) a data cube of RNR topics, types of reasoning skills, and grade bands that maps the rich array of assessment items used in these studies to national standards, and c) a synthesis of the work into视觉和叙事格式的概念走廊。 该项目将连接这些数据库，以允许教师遵循有效的概念序列，同时为学生生成相关的评估项目，并确定相关的读数，以实现自己的专业发展。