教科書・参考書などをWebExに映しても著作権の問題などは発生しないでしょうか? / Can textbooks or other reference materials be shown on Webex without copyright-related problems?
公衆送信にあたりますので本来は著作権者の許諾が必要です。
Since online classes are considered public transmissions, copyright holder permission is necessary.
However, the Agency for Cultural Affairs is announcing guidance for copyright and educational institutions moving to online learning, so please check the most recent information regarding copyright before using copyright materials (available in Japanese).