Savage Park, A Meditation on Play, Space, and Risk for Americans who are Nervous, Distracted, and Afraid to Die written by Amy Fusselman explores the dangers of America's obsession with safety. pgpedia.com/s/savage-park

The Slinky toy has been enjoyed by generations of children since its introduction in 1946. It is a simple toy made of a coiled spring that is advertised with words to describe the many actions it can do: walk, bounce, spring, juggle, flip, and jiggle. pgpedia.com/s/slinky

George D. Butler was the National Recreation Association's Director of Research for forty-three years. He was known as a pioneer" who "laid the foundation" of an effective service infrastructure within the emerging recreation field. pgpedia.com/b/george-d-but…

Invented by Rabbi Reeve Brenner in 1981, Bankshot Sports allow a large number of people of varying abilities to challenge themselves to complete various challenges. pgpedia.com/b/bankshot-spo…

Commonly known as Attention Deficit Disorder (ADD), this condition has the "official" clinical name of Attention Deficit Hyperactivity Disorder (ADHD). It is estimated that between 3 and 5 percent of children in the United States meet the criteria. pgpedia.com/a/attention-de…

A Certified Playground Safety Inspector has passed the National Recreation and Park Association National Playground Safety Institute's examination. ASTM and the U.S. Consumer Product Safety Commission are the safety standards used for this test. pgpedia.com/c/certified-pl…

Checkers is a popular board game played by children and adults alike. The game is played on a checkerboard of two colors, usually black and red, with the most popular size in America being 64 squares on an 8x8 board. pgpedia.com/c/checkers

Comprising 34 biographies of men and women, the Robert W. Crawford Recreation and Park Hall of Fame, Profiles in Leadership honors "some of the forgotten giants in this field who have paved the way for today's leaders." pgpedia.com/p/profiles-lea…

Erik Erikson was a renowned psychoanalyst who proposed that children were products of society’s expectations, prejudices, and prohibitions. His best known work is his theory that each stage of life is associated with a specific psychological struggle. pgpedia.com/e/erik-erikson

Cooperation is the act of working together for a common purpose. Cooperation is a learned behavior that can be improved and modified, which is especially developed during childhood. pgpedia.com/c/cooperation

The game of dodgeball has been a popular childhood activity on the school playground for years. The object of the game of dodgeball is to avoid being hit by balls thrown by opponents. pgpedia.com/d/dodgeball

Empower Playgrounds, Inc. is providing electricity-generating playground equipment to villages in Ghana. The playgrounds of Empower Playgrounds recharge batteries for LED lanterns to light children's homes so they can do their homework. pgpedia.com/e/empower-play…

A child psychologist, educator, speaker, and author, Dr. David Elkind has built on and furthered the works of biologist and child psychologist, Jean Piaget. He has focused on the cognitive, perceptual, and social development of children and adolescents. pgpedia.com/e/david-elkind

George E. Johnson wrote Education By Plays and Games in 1907 to "help promote a wider and higher appreciation of play and of its value in education, and add somewhat to the sum of child happiness in the world." pgpedia.com/e/education-pl…

The Glamis Adventure Playground, located in East London, is a free supervised playground that provides a wide range of child-centered and child-driven activities. pgpedia.com/g/glamis-adven…

Speeding down a snowy hill on a Flexible Flyer snow sled has been a winter activity enjoyed by children since the 1880s. The Flexible Flyer continued to be sold for over 100 years with little change from its basic design. pgpedia.com/f/flexible-fly…

As a research professor of psychology at Boston College for 30 years, Dr. Peter Gray brought the evolutionary viewpoint to general psychology, education, human development, and children’s play. pgpedia.com/g/peter-gray

Children have fantasized about triumphing over evil for years. Fighting the "bad guys" seems to be an inherent desire, especially for boys, who use gun play as a means to feel empowered. pgpedia.com/g/gun-play

Motor skills refer to the development of motor control, precision, and accuracy in the performance of both fundamental and more complex movements. They are divided into two groups: gross motor skills and fine motor skills. pgpedia.com/m/motor-skills

Joe L. Frost, EdD, had more than 50 years experience in research and teaching. One of his books, Play and Playscapes, addresses the nature and value of play and developmentally appropriate play environments for children. pgpedia.com/p/play-and-pla…