We taught 8-9 year olds about why composting and becoming eco-friendly is important then quizzed them to make sure they learned. The information really stuck with the kids. Then me an three of my friends had to build a composting build holder from scratch, and learned sawing wood is harder than it looks. So then after we built it and installed it into the community garden, the kids filled it with the greens/browns. The garden also grows fresh vegetables and herbs to sell.