Bullying has been defined as a type of aggressive behavior that causes distress or harm, demonstrates an imbalance of power, and is repeated over time. There are three major forms of bullying: physical, emotional, and verbal.
Johan Huizinga was a Dutch historian who lived from 1872 to 1945. His book, Homo Ludens: A Study of the Play Element in Culture, published in 1938, suggested the instinct for play as the central element in human culture and examined the role of play in law, war, science, poetry, philosophy, and art.
Adventures in Risky Play: What Is Your Yes? was written by Rusty Keeler and published in 2020. This book invites its readers to consider the boundaries and feelings they have about what risky play should be allowed and challenges them to discover where their boundary lines might be movable.
In the development of social play by preschoolers, cooperative play has been designated as the highest category of play. Cooperative play focuses on children working together to achieve a common goal, such as building a play structure, putting together a puzzle, or engaging in dramatic play.
Sand play areas for children in large cities were originally known as sand gardens and were subsequently called playgrounds as their popularity increased. The introduction of sand gardens in Boston in 1886 has been credited as the beginning of the playground movement in America.
Proprioception is an automatic sensitivity mechanism in the body that sends messages through the central nervous system relaying information to the body about how to react to stimuli and with what amount of tension. The muscles, joints, and connective tissues contain specialized sensory receptors that enable the body to process the information and turn that information into action.