Editorial

The article "Teaching a technical information systems module for distance learning during the COVID-19 pandemic” explores student performance when many educators had to switch to an online mode of teaching. The article "Can online professional development increase teachers' success in implementing project-based learning in South China” states that teachers are comfortable and capable of planning and implementing PBL projects during online professional development. Scientific progress and social development will change the knowledge and ability of human beings to adapt to new science and technology and new social environments, which will have an impact on teaching and further promote the change of teaching methods.