Assessment of interactive virtual learning environment to observe non-actual phenomena through explorative activities

The purpose of this study was to assess an Interactive Virtual Learning Environment of Space (IVLES) which was developed to cultivate mental rotation skills in STEM (Science, Technology, Engineering, and Mathematics). In the IVLES, learners can manipulate virtual spheres of the sun, the earth, and the moon, and can observe not only actual phenomena, but also non-actual phenomena of the lunar phases. 16 participants assessed the effectiveness and interface design of IVLES and reported that it might be easy for learners to manipulate virtual objects in the IVLES in STEM classes in middle and high schools.