The "fair use" or "fair dealing" provisions in copyright law allow certain limited unlicensed uses of protected materials. This does not mean that all educational activities can go unlicensed, however.
teacher, students and material
no teachers don't tickle students
Teachers decide what homework to give to students. Homework is given in order to enhance the instruction given in the classroom, so students can learn the material well.
why should teachers challenge students
The noun in the sentence is "students" and "teachers" as they refer to people.
A student portal serves as an online gateway allowing students and teachers to interact within a school website. The teachers may log into this portal to supply their students with assignments and class information. The students may use the portal to log in and access this material.
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Teachers assign homework to help you understand the material - so long as there are students who are having trouble in the class, there will be homework.
Teachers should treat students in the same manner as they would expect students to treat them.
The breakdown in communication between teachers and students is disrespect. The solution starts with the teachers learning how to behave, instead of reacting to a situation, Behavioral skills are important to teachers and students
As of 1992-93, there were 835 teachers for 9785 students (http://www.ankn.uaf.edu/IEW/edgreen.html), or about 85 teachers per 1000 students.
It's not clear - I think you mean, "Either the students or the teachers can join." Or perhaps you mean, "Both students and teachers can join."