The use of online classes is rapidly becoming widespread at Japanese technical colleges, due to the impact of the COVID-19. Online classes pose a major challenge in terms of achieving an educational effect at least equivalent to the practical vocational education hitherto delivered face to face. The objective of this study is to conduct an online demonstration lesson link-ing up five Japanese technical colleges, to shed light on whether online education also can deliver the interplay of experiences using ICT (experiential mode) and of reflection via workshops using pattern language (reflective mode). We conducted and examined the effects of a demonstration lesson enabling students to experience the interplay of the experiential mode via AR, VR, and other advanced technologies allowing environments to be visualized, and of the reflective mode via workshops using pattern language. The questionnaire revealed that the interplay between experiential mode and reflective mode also can be achieved in online education.