When people think of teaching, most people think that your sole concern is dealing with the student themselves. However, little do people know, establishing a good rapport with the parents actually makes up a huge part of the job. That being said, you should make an effort to open, maintain, and strengthen a line of communication between you and the parents.
That being said, this line of communication goes both ways. So, you should never be afraid to call and schedule a meeting with the parents. If a student is being problematic, do not hesitate to ask their parents for advice on how to best deal with them. Doing so can help you understand their child better and vice versa.
Just keep in mind that you should not limit your communication to bad news. You can also talk to the parents when their child does something great or if the child is showing signs of improvement. Remember, as a teacher, it is also your job to encourage parents to be proud of their own children.
Parents and teachers are natural partners. So, be sure to make this relationship a collaborative one.