By the first day of the 2007–08 school year, the majority of students were enrolled in a district with a policy suggesting or requiring students have opportunities for physical activity outside of physical education, such as physical activity breaks and recess. This bar graph shows the relative strength of physical activity policies for elementary-, middle- and high-school students. Strong policy provisions are those that required action and specified an implementation plan or strategy. They included language such as shall, must, will, require, comply and enforce. Weak policy provisions offered suggestions or recommendations, and some required action, but only for certain grade levels or times of day. They included language such as should, might, encourage, some, make an effort to, partial and try.