There will be times when ability based grouping will be the best choice. There will be times when mixed ability groups are the best choice. There will be times when students will need to work alone. Grouping must always be flexible. Parents are important.
Parents can make or break a child's education.
A child whose parent is involved in his or her education has an advantage over children lacking parental involvement. Parents must be made welcome in a classroom. Parental involvement can come in many forms and may be as simple and vital as reading to their children.