We do a campaign to encourage students to save our environment with 3R (Reuse, Reduce, Recycle). We put 2 boxes for students put their bottle caps to support our project. This '3R Campaign' was held at SK Assam Jawa with almost 300 students and a few teachers. Furthermore, we also gave a speech to encourage students to practice 3R in their daily life. End of our speech, we made a few quizzes for students and we gave some sweets for those who can answer our questions. We also explain about our project details to their teachers. Their co-curriculum teacher agreed to help us to promote this project and always remind his students to save the bottle caps and put them into the boxes.