Working with Teachers and Leveraging Technology to Scale Opportunities to Learn More Complex and Conceptually Difficult Middle School Mathematics

这个项目的主题是，美国学生比他们的国际同龄人更不可能学习复杂和概念上困难的数学，因此在成绩衡量方面落后。IERI项目的重点是扩大一项重要创新的规模，这项创新是由于学校技术的日益普及而成为可能的，即使用可操作的图形表示和模拟来实现高等数学的民主化。该项目建立在前一期IERI奖的基础上，在该阶段，项目团队为扩大这一创新开发了方法学方法和证据基础，并建立了在学校进行随机实验所需的伙伴关系。该小组现在将调查下列与比额表有关的问题：各种各样的教师能否使用创新技术（SimCalc）为学生创造学习复杂和概念上困难的数学（比率和比例是提出的主题）的新机会？哪些教学实践对学生使用这些创新材料的学习产生了积极的影响，教师能否通过实施这些最佳实践的集中子集来改善学生的学习？当我们减少研究团队的存在时，学生的收益会持续吗？

The project takes as its theme the fact that U.S. students are less likely than their international peers to learn complex and conceptually difficult mathematics and thus lag in measures of achievement. This IERI project focuses on scaling an important innovation made possible by the increasing availability of technology in schools--the use of manipulable, graphical representations and simulations to democratize access to advanced mathematics. The project builds on a former Phase I IERI award where the project team developed the methodological approaches and an evidentiary base for scaling up this innovation, and created the partnerships needed to conduct a randomized experiment in schools. The team will now investigate the following questions relating to scale:1. Can a wide variety of teachers use innovative technology (SimCalc) to create new opportunities for students to learn complex and conceptually difficult mathematics (ratio and proportion are the topics proposed)?2. Which teaching practices positively affect students' learning with these innovative materials, and can teachers improve student learning by implementing a focused subset of these best practices?3. Do student gains persist as we reduce the presence of the research team?