Plural as well as singular, singular as well as plural...

[mrdmrd]

The teachers as well as the student...is or are.....,
The teacher as well as the students....is or are.....,
which one is true?

[Sunchild]

Is would follow singular, Are would follow plural. Here, you have a plural in both sentences and ARE would be correct in each. Even if you were to say "The student and the teacher...", ARE would be correct.