Yet, a year later, the same Supreme Court ruled just the opposite in Delaware, ordering busing to mix white suburban schools of New Castle County with those of Wilmington, which were 85 percent black. Charter schools are independently-operated public schools that have the freedom to design classrooms that meet their students’ needs. All charter schools operate under a contract with a charter school authorizer – usually a nonprofit organization, government agency, or university – that holds them accountable to the high standards outlined in their “charter.” It is common to see charter schools led by former teachers who wanted to take the lessons they learned in the classroom and apply those lessons to an entire school.