虚拟实验室在工程教育中的有效性:一个元分析
1Philosophy Department, School of Humanities and Social Science, Xi'an Jiaotong University, Xi'an, China.
PloS one
|January 8, 2025
概括
虚拟实验室显著提高工程教育成果,特别是提高学生的动力和参与度. 虽然它们不能取代实践实验室,但它们是有效实验教学的关键补充工具.
科学领域:
- 工程教育 工程教育教育
- 教育技术的教育技术
- 进行元分析分析.
背景情况:
- 由于网络和模拟技术的进步,虚拟实验室在工程教育中越来越普遍.
- 对虚拟实验室对工程教育有效性的影响进行系统分析是有限的.
- 本研究通过进行元分析来弥补这一差距.
研究的目的:
- 系统地分析和总结虚拟实验室对工程学生绩效的影响.
- 量化虚拟实验室对工程教育成果的影响大小.
- 确定虚拟实验室表现出最显著影响的特定领域.
主要方法:
- 对来自22个出版物的46项研究进行了元分析,这些研究来自709篇同行评审文章中.
- 包括使用受控实验和预后设计,以虚拟实验室作为干预措施的研究.
- 分析了报告平均得分比较和标准偏差的研究数据.
主要成果:
- 虚拟实验室是工程教育成果的重要预测因素,其整体效应大小 (Hedges' g) 为0.686.
- 对于"学习动机" (3.571) 和"学习参与" (2.888) 观察到的效果大小最高.
- 虚拟实验室显著提高动机和参与度,弥补传统实验室的局限性.
结论:
- 虚拟实验室是工程实验教学中不可或缺的辅助工具,激发学生的动力和参与.
- 它们不能完全取代实践实验室体验,但可以有效地补充实验室体验.
- 将虚拟实验室与实体体验相结合,是可持续工程教育发展的关键方向.
相关概念视频
01:01Production Efficiency
Net production efficiency (NPE) is the efficiency at which organisms assimilate energy into biomass for the next trophic level. Due to low metabolic rates and less energy spent on thermoregulatory processes, the NPE of ectotherms (cold-blooded animals) is 10 times higher than endotherms (warm-blooded animals).
01:13Principle of Virtual Work: Problem Solving
The principle of virtual work is an essential concept in the field of mechanics and engineering. This is used to solve problems related to the equilibrium of a structure or system. It is based on the assumption that if a system is in equilibrium, the work done by all the forces during a virtual displacement is zero. This principle is applied by considering virtual displacements of the system and the corresponding work done by internal and external forces.
To apply the principle of virtual work,...
To apply the principle of virtual work,...
01:14Mechanical Efficiency of Real Machines
The mechanical efficiency of a machine is a fundamental concept that describes how effectively a machine can convert input work into output work. According to this concept, the efficiency of a machine is equal to the ratio of the output work to the input work. An ideal machine, meaning a machine that has no energy losses, has an efficiency of one. This implies that the input work and the output work are equal.
However, in reality, no machine can be truly ideal, and all of them experience some...
However, in reality, no machine can be truly ideal, and all of them experience some...
01:20Virtual Work
The principle of virtual work states that if a body is in static and dynamic equilibrium, then the sum of all the virtual work done by all external forces and couple moments for any given virtual displacement must be zero.
In static equilibrium, a body can experience an imaginary or virtual movement, such as displacement or rotation. The virtual work done by a force is equal to the dot product of force and virtual displacement in the direction of the force. When it comes to virtually rotating a...
In static equilibrium, a body can experience an imaginary or virtual movement, such as displacement or rotation. The virtual work done by a force is equal to the dot product of force and virtual displacement in the direction of the force. When it comes to virtually rotating a...
01:06Virtual Work for a System of Connected Rigid Bodies
Virtual work is a powerful method used to solve problems involving several connected rigid bodies. When the system is in equilibrium, virtual work is zero. This allows the calculation of the resulting forces when a system undergoes a virtual displacement. When attempting to analyze such a system, first, use a free-body diagram, where an independent coordinate represents the configuration of the links, and mark its deflected position resulting from the positive virtual displacement.
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