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相关概念视频

Three-Dimensional Analysis of Strain01:29

Three-Dimensional Analysis of Strain

Three-dimensional strain analysis is crucial for understanding how materials deform under stress, particularly in elastic, homogeneous materials. This method employs principal stress axes to simplify complex stress states into more understandable forms. Subjected to stress, a small cubic element within a material either expands or contracts along these axes, transforming into a rectangular parallelepiped. This transformation effectively illustrates the material's deformation. The principal...
Field Procedure for Staking Out Curves01:26

Field Procedure for Staking Out Curves

Staking out curves is an essential process in construction to ensure the accurate alignment of structures along a curved path. This task involves positioning stakes at calculated locations corresponding to the curve's design, effectively translating plans into physical markers in the field. The process begins by determining the geometric parameters of the curve, including the radius, central angle, and tangent distances. These parameters are critical for identifying key points such as the Point...

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相关实验视频

Updated: Jun 23, 2026

Use of Galvanic Skin Responses, Salivary Biomarkers, and Self-reports to Assess Undergraduate Student Performance During a Laboratory Exam Activity
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为课程评估解封工程实践:使用3D-LAP对准实验室实践和评估项目

Hunter McFall-Boegeman1, Steven J Petritis2, Jacob Starkie2

  • 1School of Natural Sciences, Northwest Missouri State University, Maryville, Missouri 64468, United States.

Journal of chemical education
|August 18, 2025
PubMed
概括
此摘要是机器生成的。

这项研究引入了一个新的评估协议,以确定实验室学习中的工程实践. 它将传统的"书"实验室与基于项目的方法进行比较,以加强科学教育.

关键词:
实验室说明书 实验室说明书学习理论学习理论有机化学 有机化学解决问题/做决定科学和工程实践 科学和工程实践二年级本科第二年测试/评估 测试/评估

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科学领域:

  • 化学教育 化学教育
  • 工程教育 工程教育教育
  • 科学教育科学教育教育.

背景情况:

  • 有效的实验室学习要求学生有意义地参与科学实践.
  • 将现实世界的背景和决策融入实验室工作中,对于更深入的理解至关重要.
  • 工程实践可以在实验室环境中对科学知识的应用进行结构化.

研究的目的:

  • 扩展三维学习评估协议 (3D-LAP) 用于评估有机化学实验室的工程实践.
  • 可靠地检测三个不同的工程实践:定义问题,评估解决方案和设计解决方案.
  • 为了比较验证式与基于项目的有机实验室课程的有效性.

主要方法:

  • 使用了三维学习评估协议 (3D-LAP).
  • 专注于确定特定的工程实践:定义问题,评估解决方案和设计解决方案.
  • 对比了两种二年级有机实验室课程:一种是验证式的,一种是基于项目的.

主要成果:

  • 3D-LAP成功地扩展到检测实验室学习中的工程实践.
  • 该研究为分析学生通过工程应用在科学实践中的参与提供了一个框架.
  • 分析了两种课程风格之间引发工程实践的差异.

结论:

  • 开发的评估协议可靠地检测实验室学习中的工程实践.
  • 基于项目的有机化学实验室显示出与验证实验室相比,在工程实践中促进更多参与的潜力.
  • 这项工作有助于更连贯的定义,如何引起学生在科学实验室的知识使用.