Video in the Middle: Flexible Digital Experiences for Mathematics Teacher Education

这项工作的重点是在数学教育的实际问题，支持教师专业发展代数教学。该项目将设计和开发一种基于网络的形式的专业发展和教师教育，用于中学代数的学习和教学。该项目是一个为期4年的设计和开发项目，在教学链。 计划有40个模块，将为在线专业发展经验提供重点和结构。这些模块遵循明确的学习轨迹，其中视频剪辑用于在线教师学习体验的中间，包括数学问题解决，课堂实践的视频分析和教学反思。在每个模块活动中，教师都经历了一系列一致的活动。在教师观看每个视频剪辑之前和之后，他们会参与旨在让他们深深沉浸在数学内容和重点教学内容中的活动。这项研究有可能推进知识的使用教育数据挖掘到教师教育材料的研究和开发。在研究材料的设计和影响方面，本项目可能会为其他有兴趣设计在线专业发展和教师教育材料的人提供启示。探索研究preK-12计划旨在通过研究和开发创新资源，模型和工具，显着提高preK-12学生和教师的科学，技术，工程和数学的学习和教学。DRK-12课程的项目建立在STEM教育的基础研究和先前的研究和开发工作的基础上，这些研究和开发工作为拟议的项目提供了理论和经验依据。专业发展植根于完善和不断审查开发教师材料的最佳实践。这项研究调查的设计和影响的材料，可以支持其他人谁有兴趣在设计数字专业发展。该项目将使用数据分析来发现用户首先选择使用哪些基于视频的模块，他们使用模块的顺序以及他们没有选择的模块。这些模块将包括三种交付形式，以满足教师的各种学习需求（个人自定进度，小组进度，促进/结构化课程），并为专业发展提供者和教师教育者提供灵活的途径和多个模块的顺序，以在自己的环境中使用。此外，该项目包括一项计划，通过开放获取专业开发人员和教育工作者提供这些模块。该项目包含一个评估专业发展有效性的强有力计划。在三年级，我们计划进行一项随机对照试验性的成效研究，探讨教师参与分组进度授课和简易课程形式对他们的数学知识和教学实践的影响，以及对学生表现的整体影响。该项目非常注重支持教师对线性函数，表达式和方程的知识以及各种表示如何连接和联系的实际问题。

This work focuses on a practical problem in mathematics education; supporting teacher professional development for algebra teaching. The project will design and develop a web-based form of professional development and teacher education for learning and teaching algebra in middle school. The project is a 4-year Design and Development project within the Teaching Strand. Forty modules are planned that will provide focus and structure to an online professional development experience. These modules follow an explicit learning trajectory in which a video clip is used in the middle of an online teacher learning experience composed of mathematical problem solving, video analysis of classroom practice, and pedagogical reflection. Within each module activity, a teacher experiences a consistent set of activities. Before and after teachers watch each video clip, they engage in activities designed to immerse them deeply in both the mathematics content and the focal instructional components. The study has the potential to advance the knowledge of the use of educational data mining into the research and development of teacher education materials. In researching both the design and impact of the materials this project may offer implications for others interested in designing online professional development and teacher education materials. The Discovery Research preK-12 program seeks to significantly enhance the learning and teaching of science, technology, engineering and mathematics by preK-12 students and teachers, through research and development of innovative resources, models, and tools. Projects in the DRK-12 program build on fundamental research in STEM education and prior research and development efforts that provide theoretical and empirical justification for proposed projects.The professional development is rooted in refining and consistently examining best practices in developing the teacher materials. The study investigates the design and impact of the materials which can support others who are interested in designing digital professional development. The project will employ the use of data analytics to discover what video-based modules users choose to use first, the sequence in which they use the modules, and the modules they don't choose. The modules will include three delivery formats to meet the variety of teacher learning needs (individual self-paced, group-paced, facilitated/structured course) and offer flexible pathways and sequences of multiple modules for professional development providers and teacher educators to use in their own contexts. Moreover, the project includes a plan to make the modules available through open access for professional developers and educators. The project contains a robust plan for evaluating the effectiveness of the professional development. In Year 3, a randomized controlled trial pilot efficacy study is planned to address the impact of teachers' participation in the group-paced delivery and facilitated course form format on their mathematics knowledge for teaching and teaching practice as well as the overall impact on their students' performance. The project has a strong focus on the practical problem of supporting teachers' knowledge of linear functions, expressions, and equations as well as how various representations are connected and linked.