Rational Number Project: Instructional Module for Fractions, Decimals, and Percents

这个为期三年，554，418美元的项目通过开发一个在中学水平教授分数，小数和百分比的模块，扩展了小学水平的有理数项目（RNP）过去的工作。 根据NCTM标准，该模块由大学学者和课堂教师根据建构主义学习原则，特别是Lesh多重表征翻译模型合作开发。 发展发生在明尼阿波利斯公立学校的教室里，超过50%的学生来自服务不足的人群（42%的非洲裔美国人，13%的西班牙裔）。 为了更好地满足这些学生的需求，文化和第二语言专家是项目跨学科团队的成员。 该模块包括23节课，涵盖约4-5周的教学。其中包括相关的评估工具/方法以及供教师使用的书面材料和视频剪辑（在线讲习班）。 该模块首先在城市教室（五年级或六年级）开发和试点，项目人员团队与任课教师一起教授。 学生数据（访谈，文物，观察）收集和分析，以通知试点模块的修订。 实地测试发生在其他教室，包括教师谁使用它的基础上的书面和在线材料，以检查在何种程度上可以采用的材料没有密集的面对面的专业发展。

This three-year, $554,418 project extends the past work of the Rational Number Project (RNP) at the elementary school level by developing a module for teaching fractions, decimal, and percentages at the middle school level. In line with the NCTM Standards, the module is developed collaboratively by university scholars and classroom teachers on the basis of constructivist principles of learning, particularly the Lesh model of translation among multiple representations. The development takes place within classrooms in Minneapolis Public Schools, where more than 50% of the students come from underserved populations (42% African American, 13% Hispanic). To better cater to the needs of such students, an expert of culture and second language is a member of the project interdisciplinary team. The module consists of 23 lessons that cover about 4-5 weeks of instruction. It includes relevant assessment instruments/methods and written materials and video clips for teachers (online workshop). The module is first developed and piloted in an urban classroom (5th or 6th grade), where project personnel team teach it with the classroom teacher. Student data (interviews, artifacts, observations) are collected and analyzed to inform revision of the pilot module. Field test takes place in other classrooms, including teachers who use it on the basis of the written and online materials alone to examine the extent to which the materials can be adopted without intensive face-to-face professional development.