Automatic Picture Transmission (APT) images are real-time weather pictures transmitted from satellites on a radio frequency in a video format. Amateur radio enthusiasts and electronic experimenters have for a number of years designed, built, and operated direct readout stations capable of receiving APT photographs. The equipment to receive weather satellite pictures can be collected and/or built by individuals who do not have a high degree of technical training. The ability to receive daily pictures from these satellites offers exciting opportunities for secondary school teachers and their students to assemble the electronic hardware and view real-time pictures of earth from outer space. This teacher's guide contains the following: (1) schematic diagrams of components within the APT system; (2) a general description of the direct readout station; (3) specifications for the antenna and transmission system with installation photographs and assembly diagrams; (4) a description of the required radio receivers with necessary modifications for inclusion in the APT reception system; (5) practical and inexpensive ways for the reproduction of satellite pictures; (6) detailed information on the locating and tracking of polar satellites of the TIROS-N series; (7) suggested uses of the weather satellite information in conjunction with student projects; and (8) appendices that include references, suggested readings, and a technical glossary. (PR)