Picking up litter in a park. Before the activity, the teacher could talk to the children about why it's important to keep the community clean and how litter can harm the environment and animals. During the activity, the children could work in pairs or small groups to pick up litter and sort it into different categories (e.g. plastic, paper, glass). After the activity, the teacher could lead a discussion with the children about what they found and what they learned. They could also brainstorm ideas for how to prevent littering in the future. Finally, the children could make posters or signs to display in the park, reminding others to keep the community clean.This activity not only helps to clean up the community, but it also teaches children about the importance of taking care of the environment and working together as a community.