This unit of instruction on selection and living styles for energy conservation in single-family and multi-family housing and mobile homes was designed for use by home economics teachers in Florida high schools and by home economics extension agents as they work with their clientele. It is one of a series of 11 instructional units (see note) written to help teachers and agents to educate their students and clients about the problems of energy shortages and strategies for energy conservation and management. This instructional unit is organized in three modules: (1) Single Family Homes; (2) Multi-Family Homes; and (3) Mobile Homes. Topics covered include factors to consider in building, remodeling, or purchasing a single family home with regard to energy conservation; energy-related factors to consider in choosing an apartment; energy-related factors to consider in choosing the location for a mobile home; and improving the energy efficiency of a mobile home. The unit contains student performance objectives, content information, teaching-learning activities, student handouts, transparency masters, and evaluation instruments. (KC)