Monitoring means establishing firm guidelines and limits for your child to keep track of what is going on in his or her social world. Monitoring also means establishing clear expectations about what your child should always tell you AND that they can always talk to you about the things going on in their life.
To know more about what your children are doing, install the mobile tracker https://www.hoverwatch.com on their phone. You will be able to know the location of your child during the day, as well as who and what your child communicates with