Professionalism in opera singing depends on the quality of education. This study examines the teaching of opera singing online via master classes and seminars. Based on the present findings, master classes are effective in improving the voice technically and range-wise, whereas seminars are effective in helping opera singers achieve emotionality.…

Preschool teachers' questioning is an important part of the teaching and learning process as questions can drive children's thinking (Nappi 2017). As one of the most common pedagogical tasks in preschool, storytelling has the potential to bring the world to the classroom using imagined or real stories. However, to date, there is limited knowledge…

Evidence from a range of fields indicates that inventions are often inspired by drawing a parallel to solutions found in nature. However, the cognitive mechanism of this process is not well understood. The cognitive mechanism of heuristic prototype in scientific innovation was tested with 3 experiments. First, 84 historical accounts of important…