Final answer:
School planning should be performed by a team with a mix of knowledge and expertise, involving both school board members and school personnel.
Step-by-step explanation:
Lessons learned from experience indicate that school planning should be performed by a team with a mix of knowledge and expertise. This allows for different perspectives and ensures that all aspects of planning are considered. Including all school board members can be beneficial, but it is important to also involve the principal, school personnel, and school administrators who have direct knowledge and experience in school operations.