Hi Sarah
I'm AnnaThomas and I'd happily help you with your question. In this Forum, we are Microsoft consumers just like yourself no one here is a Microsoft employee.
If you have more than 45 students in your class, you will not be able to use the Emotion Board feature. However, you can still download the printable board kit from the Reflect app in your class team and set up a physical board in your classroom. You can also use the Reflect web application or the Reflect app in Teams to conduct check-ins with your students using emojis and the Feelings Monster.
Reference: https://support.microsoft.com/help/e9198f62-7860-4532-821f-53ef14afa79a
I hope this helps ;-), let me know if this is contrary to what you need, I would still be helpful to answer more of your questions.
Best Regards,
AnnaThomas
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