Research and application of situated teaching design for NC machining course based on virtual simulation technology

Abstract

As virtual simulation technology can display three‐dimensional materials as well as their dynamic cutting process and the learners’ motivation is enhanced in the situated learning environment, a virtual‐situated learning system for numerical control (NC) machining course is proposed to explore the learning effectiveness of learners when combining virtual simulation technology and the situation learning theory. This study aims to use the concept of embedding NC machining simulation system and the situated learning into a real situation to improve the learners’ situated thinking ability and innovative literacy. The features of the system include (a) the learning activities and contents that are planned and designed using the key factors of situated learning based on the specific teaching contents and objectives, (b) combining virtual objects with a real environment using virtual simulation technology to provide a project‐based learning situation for learners, and (c) probing into the specific methods of implementing situated teaching design in NC machining course. To assess the acceptance of the proposed system, an independent sample t‐test was then applied to evaluate the learning achievement of learners. The results show that the research scale is highly reliable and that all assumptions made are valid. In addition, the effect of the situated teaching was investigated through questionnaire survey. The experimental results suggest that the virtual‐situated teaching design has significant positive impact on improving the students' learning efficiency and performance skills and indicates that the participants were attracted to and willing to use the system, which directly enhances their incentive to actively learn and promote learning achievement.

A virtual simulation experiment platform of subway emergency ventilation system and study on its teaching effect

“…The traditional teaching method is difficult to ensure the participation of each student and the teaching quality of teachers, and the limitation of emergency experiment has a certain impact on students’ deep learning and understanding, so virtual simulation experiment is adopted to improve students’ learning effect and course satisfaction. Previous studies have also shown that virtual simulation experiment teaching has a positive impact on teacher teaching and student learning 34 , 35 . Therefore, it is of great significance to examine the effect of a virtual simulation platform.…”

Design and Application of College Online Education Platform Based on WebRTC

“…Finally, the optimal weights are obtained. The key of using genetic algorithm to solve the problem is to select the appropriate fitness function and genetic operation such as selection, crossover and mutation [33,34]. Among them, the structure of chromosomes is α, β, γ, δ rough empirical value is (0.2/0.25/0.35/0.2), the initial population is 40, and the value of each position of each chromosome fluctuates not more than 0.05, which is generated by random algorithm.…”

Cultivation of the Students’ Critical Thinking Ability in Numerical Control Machining Course Based on the Virtual Simulation System Teaching Method

“…Moreover, it has been observed over the past few years that the student-centered virtual simulation learning environment allows the students for more active interpretation, analysis, evaluation, inference, explanation and self-regulation, and helps us to keep all the learners involved in the content. The resulting interactive learning module will also impose more responsibility on students for their own learning than the traditional lecture-based passive learning methodology [49,50]. This tends to create a cooperative learning atmosphere for students, so that in the process of sharing knowledge and experience, the students can enhance their thinking openness, self-confidence and systematic ability through assessment and self-regulation.…”