A family of Microsoft word processing software products for creating web, email, and print documents.
Hi Kerry,
Thank you for posting back and spending time sharing your test result with us.
From all the information provided, you want to create fillable blanks in Word document so that the students can edit them in Word online and Microsoft Teams.
I have tried content control as well from my side, unfortunately it's not available to use content control in Word online.
Given the situation, I recommend you share your valuable feedback to Word UserVoice, this would be the best way to let the developers know your requirements and suggestions, UserVoice is a platform which is actively monitored by the related team, many features have been implemented from customers feedback. Your voice is always very important to us.
Thanks for your understanding. Have a nice day and stay safe😊.
Best Regards,
Tina