This resource explains the fundamental components that make up the furniture in our classroom, specifically focusing on a school desk. It introduces raw materials such as timber, iron, and plant-based resin, discussing their sources and the transformation process they undergo from raw materials to finished products. The document outlines the importance of processing these materials into usable components, such as wooden boards and steel screws, and explores the concept of cultivation as a method of ensuring a sustainable supply of resources. In addition, it encourages students to reflect on the environmental implications of sourcing and using these materials, emphasizing the significance of understanding our resources in daily life.