Answer: Involving parents in the classroom is important many reasons, not only does it mean there's less stress on the teacher, there's less stress on the student, and less stress on the student means more likely to succeed.
Step-by-step explanation: Having a parent involved in their child's classroom life can contribute to many factors, such as: Grades, overall activeness in the child's learning/education, school-homework organization & time management, and positive classroom behavior. If a child feels like their parent/parental guardian is involved in their class life, that can take away LOTS of stress, as parents can work with teachers to set pace, talk to the educator about possible learning disabilities, and also set school-year goals.
For example, a teacher can speak with a parent to make some much needed rearrangements for little timmy or emma's study time. Or even suggest an extra at-home activity to help little timmy or emma improve their math or reading skills. (the facts dont lie! children do much better in school when their parents are active in their learning.)
Another thing, involving parents can lead to improved communication. Imagine if every parent attended a PTA meeting at least once! Knowing what's going on at the school your child is learning in can be very beneficial, and it helps if the teacher can build relationships with you [and other parents], too.