Real chemical experiments may be dangerous or pollute the environment; meanwhile, the preparation of drugs and reagents is time-consuming. Due to the above-mentioned reasons, few experiments can be actually operated by students, which is not conducive to the chemistry learning and the phenomena principle understanding. Recently, due to the impact of Covid-19, many schools adopt online teaching, which is even more detrimental to students' learning of chemistry. Fortunately, MR(mixed reality) technology provides us with the possibility of solving the safety issues and breaking the space-time constraints, while the theory of human needs (Maslow's hierarchical needs) provides us with a way to design a comfortable and stimulant MR system with realistic visual presentation and interaction. The paper combines with the theory of human needs to propose a new needs model for virtual experiment. Based on this needs model, we design and develop a comprehensive MR system called MagicChem, which offers a robust 6-DoF interactive and illumination consistent experimental space with virtual-real occlusion, supporting realistic visual interaction, tangible interaction, gesture interaction with touching, voice interaction, temperature interaction, olfactory interaction and virtual human interaction. User study shows that MagicChem satisfies the needs model better than other MR experimental environments that partially meet the needs model. In addition, we explore the application of the needs model in VR environment.
Purpose
The purpose of this paper is to study the application ways of extended reality (XR) in teaching, the specific teaching effects and how to implement teaching integration.
Design/methodology/approach
The study adopts an umbrella review approach, locates and screens 20 pertinent meta-analysis studies published in international journals and conducts a systematic review of the effects of teaching applications of XR technologies in terms of subject categories, education levels and teaching cycles.
Findings
The study finds that the effects of virtual reality and augmented reality technologies on teaching effectiveness can reach up to 0.723 and 0.951, indicating that XR technologies can improve teaching.
Practical implications
Through the systematic analysis of 20 related element analysis studies published in international journals, the specific methods and effects of XR technology applied to teaching are finally obtained and put forward the new application trend of XR promoting teaching effect.
Originality/value
In the past decade, more and more research has also focused on the specific methods and effects of XR technology applied to teaching. However, there are still problems such as unclear technology application path and unclear effect. Based on this, it is necessary to further conduct an overall overview and analysis of the impact of XR technology on teaching effect when it is integrated into teaching, systematically study the teaching effect of XR technology in different education levels and subject types and provide a theoretical basis for more detailed research on XR technology integration into teaching.
Social media usage is indispensable for college students, but the connection between social media and learning has received little scientific investigation. By examining pre-service teachers' attention to science, technology, engineering, and mathematics (STEM) teaching content and presentation in social media apps through WeChat, DingTalk, and TikTok, this study aimed to provide suggestions on using social media apps to promote pre-service teachers’ skill learning and teaching development and to understand the relationship between social media and learning. 383 valid surveys were distributed and gathered. The findings indicate that: 1) Social media apps have both beneficial and detrimental effects on education. 2) The degree of agreement differs on “Social media app is an excellent teaching tool” and “social media app has significant promise in boosting educational development”. The highest and lowest levels of agreement degrees were obtained for DingTalk and TikTok. The level of identification also affects how much pre-service teachers may pay attention to educational research and how frequently they study new materials in the future. 3) The degree to which pre-service teachers' academic performance in professional learning is affected by their use of social media varies. These findings have implications for pre-service teachers. This study suggests that it is necessary to further investigate the teaching aid function of social media apps and how pre-service teachers can better utilize them to develop professional skills.
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