Modeling is an essential skill for the career physical scientist or engineer. One approach that attempts to integrate this element of critical thinking into the laboratory environment is the modeling framework lab. In this style of lab exercise, students construct a model of both the measurement apparatus and the phenomenon under investigation. A key challenge to implementing this approach in introductory mechanics courses is that the use of electronic data acquisition modules obfuscates the process by which primary measurements are made and interpreted. Conversely, the use of simple analog devices does not adequately prepare students for scientific investigations in the “real world.” Here, the Arduino^TM microprocessor is considered as a platform to bridge this pedagogical gap. Student survey data regarding perceived value of the labs, force concept inventory testing, and analysis of final exam scores were used to assess the efficacy of this approach. Results from this style of lab were compared to “task-measurement” style labs, in which students followed a set of instructions and utilized commercial “black box” data acquisition tools. Arduino^TM-based modeling framework labs showed robust increases in both perceived and measured quantitative skills compared to “task-measurement”-taught sections. These data support the use of open-source microprocessors as a powerful pedagogical platform for offering modeling framework labs in introductory mechanics.

中文翻译：

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ArduinoTM微处理器作为框架实验室建模的平台

对于职业物理科学家或工程师而言，建模是一项必不可少的技能。试图将批判性思维的这一元素整合到实验室环境中的一种方法是建模框架实验室。通过这种实验室练习，学生可以构建一个测量仪器和正在研究的现象的模型。在入门机械课程中实施此方法的主要挑战是，电子数据采集模块的使用会混淆进行和解释主要测量的过程。相反，简单的模拟设备的使用不足以使学生为“现实世界”中的科学研究做好充分的准备。在这里，Arduino ^TM微处理器被认为是弥合这一教学差距的平台。有关实验室的感知价值，测力概念清单测试和期末考试成绩分析的学生调查数据被用来评估这种方法的有效性。将这种类型的实验室的结果与“任务测量”类型的实验室进行比较，在该实验室中，学生遵循一组说明并使用了商业“黑匣子”数据采集工具。与“任务测量”授课的部分相比，基于Arduino ^TM的建模框架实验室显示出感知和测量定量技能的强劲增长。这些数据支持使用开放源代码的微处理器作为功能强大的教学平台，以提供入门级的力学建模框架实验室。