“Play to Learn” is an approach that develops children to gain knowledge and happiness simultaneously. Realising this, Naresuan University Demonstration School (Kindergarten and Primary) has built ‘a small city’ as a classroom and a playground for students so that they can do role plays with fun such as an ice cream vendor, customers in a restaurant, drivers, traffic policemen, etc. Through such roles, students can learn how to live with others in society and get ready to be adults in the future. The “City of NUDS Kids” is therefore an imaginative town that helps students learn how to live happily together. Ms. Boonmanutsaya Sinsuk/News Mr. Natchanop Nammawong/Photo Assist. Prof. Dr. Sudakarn Patamadilok/Translation