Charlie character in the classroom

We have added Charlie as a character to the classroom interface.
Please answer a few questions to help us understand our plan of developing this feature.
 
If you haven't used Charlie yet, you can skip questions 2, 3, 4 if you haven't used Charlie in the classroom yet, but we would appreciate your ideas in the last question.
To find out more about Charlie, please see this article:

 
 
1.Did you know about Charlie character feature in the classroom?
2.Have you already used Charlie at your lessons?
3.What is the average age of the students who you used Charlie with?
4.What was the reaction of your students? Please write a few phrases.
5.Do you have any ideas on how we could improve Charlie function in the classroom? Maybe we will pick your idea and it will be implemented next!
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