In Williams v. California, for example,
teachers, parents, and students from low - income communities described overcrowded schools that had to run multiple shifts each day and multiple shifts during the school year, alternating on - months and off - months for different cohorts of students cycling in and out of the building; classrooms with more than 40 students without
enough desks, chairs, and textbooks for each student to have one; lack of curriculum materials,
science equipment,
computers, and libraries; and crumbling facilities featuring leaky ceilings and falling ceiling tiles, sometimes overrun with rodents, and lacking heat and air conditioning.