Does the subject want to ask "Why can't the picture book classroom app for primary school students be activated"? Because of the internet. The picture book classroom app for primary school students is a learning software specially developed by Beijing Hongda Yijia Education Technology Co., Ltd. for primary school teachers and primary school students all over the country. If the user can't activate the app when using it, it is caused by network reasons, and it can be solved by reconnecting the network. App has rich and wonderful courses, and synchronizes primary school textbooks, so that students can feel the same interactive teaching on the Internet as in the classroom.