In the past two years, due to the COVID-19 outbreak, a lot of SNS materials that inform the types of online learning tools and how to use them have been released, and related offline training has increased a lot. And home and school have it devices that can learn online. Teachers knew and used more tools than before Corona. However, these days, with the change to face-to-face classes, teachers around the world are trying to teach classes using only textbooks, just like before Corona. I am worried that the class will be changed to pre-Corona class, textbook-centered classes again. Although textbook-centered classes are not without their drawbacks, do students and parents want them as well? Parents will turn their backs on schooling and students may lose interest in studying.