"Thank you teacher" Children around the world thank teachers for helping them keep learning before, during and after COVID19 school closures UNICEF UNICEF/UNI3272/ 23 September COVID19 has caused unprecedented disruption to education, with a peak of more than 15 billion children in 190 countries out of school During this time, teachers have Thank You The most sincere and heartfelt "Thank you" to the teacher who provided us all with support, guidance and precious life lessons Your students will always keep you in their hearts!What can Teacher Thank You Letters teach?