Yes, the teacher may often check edu's email. Edu mailbox is the mailbox of educational institutions, which is usually used for communication and administrative work between schools or educational institutions. Teachers can check edu's e-mails regularly to keep their attention on matters related to schools or educational institutions, such as student affairs, curriculum arrangement, examination results, etc.

But the specific frequency and time will vary according to the specific situation of teachers and schools. For example, if a teacher is in charge of more than one class or course, he may check his mailbox for a certain period of time, such as every morning or every Friday afternoon. At the same time, teachers may arrange the reading order according to the importance and urgency of emails to ensure timely handling of related affairs.

In short, teachers may often check the edu mailbox to ensure that the normal operation of schools or educational institutions and the needs of students are paid attention to and dealt with in time.