This document is an outline for a module which can be inserted, in whole or in part, in community college courses on California and/or Southwest United States history, Mexican-American or Chicano history, Mexican history, and United States history. The module examines the close ties--political, economic, and social--between Mexico and California during an historical period that was crucial in shaping the later patterns of development in each. Focus of the module is primarily on the Mexican immigration to California and the factors surrounding that migration. Goals of the module, topics for lecture/discussion in each of the module's units, and suggested readings for students and background readings for instructors for each unit are included. A bibliography is appended. (JDS)