Jacket hoods or collar tie strings can be caught as the child is going down a slide or other equipment, and the child can be choked. All metal edges should be rolled or capped. Pinch, crush, or shear points should be eliminated. There should not be any tripping hazards. Thorny bushes or weeds should be removed.
Adequate supervision is needed.
There should be simultaneous coverage of the play area with adequate ratio of students to supervisors. Safety rules should be taught and enforced. There should be age-group separation. Ball diamonds should have break-away or recessed bases. Tires and other pieces of equipment that can collect water should have drain holes in the underside.