Study Guide: Whiteboard Fi
Whiteboard.fi is a simple and feature-rich tool that can be used immediately. By creating a class and letting your students join, everyone has access to their own digital whiteboard. The teacher can see all students whiteboards in real time, and can follow their progress. The students only see their own whiteboard and the teacher’s.
Source: https://class.ronliskey.com/study/computing/whiteboard-fi/