As many students return to classrooms for the first time in more than a year, teachers are saying to be patient, prepared and proactive. LEARN MORE: How to protect teens' mental health as school year begins amid pandemic: https://gma.abc/3z5D6Nf SUBSCRIBE to GMA's YouTube page: https://bit.ly/2Zq0dU5 VISIT GMA's homepage: https://www.goodmorningamerica.com SIGN UP to get the daily GMA Wake-Up Newsletter: https://gma.abc/2Vzcd5j #Teachers #BacktoSchool #Parenting #COVID19 #GMA