I grew up in a rural area. Nature teaches you so many ways at looking at the world, as well as common sense and cause and effect within systems. I now live in the city (in an apartment with no real yard) with my daughter and am so thankful she has a preschool like "good" one described. Natural materials, plants, gardens, even bunnies! They walk around the neighborhood, to parks and have 3 outside visits per day. I wish all city-dwelling parents could give their kids this opportunity. Screen time with expensive gadgets, peer social interaction, or even parenting time can't substitute what kids learn by getting dirty and watching things grow and change in nature.