このクラスでは、Outschool内のクラスルームに加えて、以下を使用します。
Google Forms
Thinglink

The game does not have any graphic or scary elements. 

COPPA Policy for Thinglink:

There are video clips embedded in the Google Forms Quiz. Safety and privacy are our top priorities. Learners under 13 will need to have Parental Consent when accessing those links on Google for those with student accounts to comply with COPPA.

Students will be provided with a direct code to access the game link, and will bypass any registration or sign-ins for Thinklink as I have a Professional Teacher License through the service to use the platform as a teaching tool. Therefore, learners will not need to provide any information or sign up for the platform themselves. In fact, students will be provided with a link that restricts them from having to share any personal information or sign in, as the game will appear on their screen without an interface. However, parental consent will be required to comply with COPPA. As per the terms of usage, all students accessing the Service are subject to consent provided via their educator or educational institution, as allowed under COPPA, and will require the use of a unique invitation code supplied by their instructor or education institution in order to create an account or access the platform. Any use or access to the Service by anyone under 13 without Consent, is strictly prohibited and in violation of this Agreement.