Final answer:
Adventure playgrounds of the 1960s differed from those of the 1920s by incorporating unused building materials for creative and unstructured play, as opposed to the fixed and formal play structures of the earlier era.
Step-by-step explanation:
Adventure playgrounds of the 1960s were notably different from the playgrounds of the 1920s in several ways. During the 1960s, adventure playgrounds began to take a unique form, embracing the concept of child-driven creativity and unstructured play. These playgrounds often utilized unused building materials, such as tires, wood planks, and ropes, which allowed children to build, modify, and interact with the play space in a more dynamic and imaginative way.
In contrast, playgrounds of the 1920s lacked such elements of innovation and creativity. That era's playgrounds were more traditional in design, featuring standard equipment such as swings, slides, and merry-go-rounds. These were built to provide a specific type of play and were less focused on imaginative or constructive activities.
During both periods, playgrounds served as a means for children to engage in leisure activities outside the constraints of school or work. While the 1920s playgrounds were limited to the conventional and the static, the adventure playgrounds of the 1960s offered a completely different experience that was open-ended and fostered creativity, exploration, and self-expression among children.
The final answer, in a two line explanation, would be that adventure playgrounds of the 1960s were different because they made use of unused building materials to promote child-driven creativity and unstructured play, unlike the formal play equipment of the 1920s playgrounds.