This passage mainly talks about how different age of kids play on the slide.
This passage is mainly about the how to make children play the outdoor playground and outdoor swing sets on their own.
This article is about the importance of ropes in the outdoor activities.
This article mainly talks about the indoor playground.
This article talks about what the unpowered playground equipment is.
It is recommended to use indoors, because most of the products are made of wood, plastic and iron, which will wear out the materials when used outdoors for a long time.