This teacher's guide presents teaching suggestions and presentation materials about natural resources as economic assets contributing to national economic productivity. The term "natural resource accounting" or "green accounting" is introduced for valuing natural resources as capital in economic systems. The lesson is divided into five parts and can be taught in two or more class periods. Student handouts include: (1) "Facts about Indonesia and Japan"; (2) "Facts about National Income Accounting"; and (3) "What Happens When Natural Resources Are Taken into Account?" Transparency masters offer "Costa Rica's Agricultural Product before and after Natural Resource Depreciation"; "Comparison of Indonesia's Gross Domestic Product (GDP) and Net Domestic Product (NDP), 1971-1984"; and"Comparison of Indonesia's Gross Domestic Investment (GDI) and Net Domestic Investment (NDI), 1971-1984." (EH)