This teacher resource book describes the Spanish-Mexican contribution to the cattle industry, rodeo, and cowboy culture. It provides background material, resources, and activities for developing a bilingual-bicultural education course for primary, intermediate, and upper grades. The first three sections discuss the cattle industry, American rodeo, and its Hispanic heritage. Section four contains examples of Spanish language contributions to western cowboy culture. Section five examines the history of the horse in North America, and the Spanish-Mexican horseman known as the "charros." Section six describes the "charreria", or the Spanish-Mexican horsemanship events, and compares them with the American rodeo. Section seven briefly describes the local Denver and Pueblo, Colorado, Charro Associations. Sections eight and nine provide songs, poems, and riddles of the Spanish-Mexican cowboy. The final three sections contain resources and learning activities on Spanish-Mexican contributions for primary, intermediate, and upper grades. (DE)