This resource guide results from a joint project of the Texas Council on Economic Education and the Texas Education Agency. For each of the elementary school grades, the guide presents interdisciplinary lessons that feature an integrated approach to the teaching of economics. The lessons are devoted to a number of basic economics concepts. The understanding of these concepts will provide students a foundation on which to build economics knowledge and skills for lifelong use. An economics concept chart is presented with scope and sequence noted for each grade level. Lessons focus on the economics concepts of: (1) scarcity; (2) wants; (3) resources; (4) goods and services; (5) opportunity costs; (6) production; (7) specialization; (8) exchange; (9) money; (10) economic systems; (11) economic institutions and incentives; (12) markets and prices; (13) supply and demand; (14) competition; (15) income distribution; (16) role of government; (17) unemployment; and (18) absolute and comparative advantage. Attachments and supplementary materials accompany the lessons. (EH)