CAVEDU is a famous education team in maker community, which focuses on robot education and the research of development board. Therefore, those who are interested in maker would usually choose their works as guidelines. The team member, Tseng Chi-Hung is a pioneer of domestic maker activities and IoT education. Besides, he is also prolific and enthusiastic to share new technology. Here is the link of CAVEDU channel, which collecting lots of slide lectured by Tseng.
He used to talk about the difficulties in establishing IoT classrooms: