The outdoors is an ideal place to teach children about life, food and the environment. In our house the little rurals and I like to spend as much time as possible outside during the warmer months. We love to hike our local mountains and explore other parts of California. However, a lot of learning can begin right in the backyard.
Most of our backyard is for production of vegetables, ornamental edibles and fruit trees. Though we have carved out a small children's area the majority of the yard is a pretty adult space. That doesn't mean the children can't help and learn though. Together we plant seeds, gather up leaves and water. Children are excellent at watering. Little Rural is teaching the girls that we don't water the leaves (sun burn) and also how to check if the soil is ready for more water (finger check).
I think it's very important to let children get involved in the yard. It's exciting to see things grow but even more exciting to know that you helped make those things grow. I attribute it to the same pride I feel when I pluck a red, ripe tomato from the vine. It takes a lot of nurture to get to that point, especially when you start from seeds. You don't need anything fancy to garden with children. Though you can purchase children's size garden tools, aprons, etc. our kids have outdoor shoes and that's about it. They do very well using our tools (with supervision) and are quite alright getting dirty along side mom or dad, especially when they know that it's okay to get a little dirty.
We are currently sectioning off an area of the new children's garden for their very own garden bed. We'll probably plant a tomato and some squash to the children can really see things moving and growing. They will be responsible for watering and checking on their plants. Great motivation to get outside, enjoy the sunshine and be involved.