Teachers created different learning environment and activities based on the content of the Picture Book “Mottainai Grandma”, coupled with different strategies to let students experience and practice frugality. Students think of ways to be frugal and learn to cherish resources. The activities such as “Waste Transformation”, “Designing Eco-Monster Costumes”, “Sorting Trash”, and “Conscience Alley” cultivate students to have good habits of contentment, cherishment and avoid wastage.