Design of Electronic Learning Tools to Supplement General Chemistry Experiments

化学（12）这个项目正在为圣何塞州立大学第一学期的普通化学课程中的一组化学实验创建一系列电子学习工具（ELT）。ELT的设计将使它们特别强大。一个系统的发展方法被用来研究专家化学教师如何解释概念，以揭示他们的解释核心的关键功能，并打破了一系列的自然片段的序列。此外，化学系学生的解释亦会接受审查，以确定和针对他们的学习需要和常见的误解。一个图形艺术学生团队正在与研究人员合作，根据研究结果开发英语教学法。这个项目的智力价值在于，ELT的设计包含了亚微观层次化学反应的动画，这些化学反应嵌入在一个框架中，该框架利用静态图像，并与宏观概念和符号层次的思维相联系。这种类型的学习工具提供了一个支架，以提高学生的能力，推理之间的联系的三个层次的化学（亚微观，宏观和符号）在他们的道路上理解的反应的性质。这个项目的更广泛的影响是，英语教学法可以提高学生对化学反应的理解，这是普通化学课程的一个中心话题，经常在与化学有关的课程和媒体中提到。具体来说，英语测试将帮助学生准备实验，针对具体的误解揭示了通过研究。

Chemistry (12) This project is creating a series of electronic learning tools (ELTs) for a set of chemistry experiments currently taught in a first semester, General Chemistry course at San Jose State University. The design of the ELTs will make them particularly powerful. A systematic development approach is being used to study how expert chemistry instructors explain concepts to uncover key features central to their explanations and to break the sequence into a series of natural segments. Chemistry students' explanations are also being examined to identify and target their learning needs and common misconceptions. A team of graphic arts students are working with the researchers to develop the ELTs based on the research findings. The intellectual merit of this project is that the ELTs are being designed to contain animations of submicrosopic level chemical reactions embedded in a framework that makes use of still images and makes connections to macroscopic concepts and to symbolic levels of thinking. This type of learning tool provides a scaffold to enhance students' abilities to reason about the connections between the three levels of chemistry (submicroscopic, macroscopic and symbolic) on their path to understanding the nature of reactions. The broader impacts of this project is that the ELTs may improve students' understanding of chemical reactions, a central topic in general chemistry courses and often referred to in courses and media that interface with chemistry. Specifically, the ELTs will help prepare students for experiments by targeting specific misconceptions revealed through research.