The scalability and accessibility of quality professional development (PD) is an ongoing concern in the teacher education community, yet little research has been conducted on potential solutions. We aimed to address this gap by developing an interactive, virtual PD program that uses intelligent tutoring systems and provides instant feedback to teachers. We then explored the role of this program in developing teachers’ content and pedagogical content knowledge of mathematics. We collected data from 60 teachers located across the USA and found that those who completed the program increased their content and pedagogical content knowledge.

中文翻译：

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扩大专业发展的一种有前途的方法：智能、交互式、虚拟的专业发展和及时反馈

优质专业发展（PD）的可扩展性和可及性是教师教育界持续关注的问题，但对潜在解决方案的研究却很少。我们的目标是通过开发一个交互式虚拟 PD 程序来解决这一差距，该程序使用智能辅导系统并向教师提供即时反馈。然后，我们探讨了该计划在发展教师数学内容和教学内容知识方面的作用。我们收集了美国各地 60 名教师的数据，发现完成该计划的教师增加了他们的内容和教学内容知识。