The Zimbabwe Secondary School Science Project (ZIM-SCI) developed student study guides, corresponding teaching guides, and science kits for a low-cost science course which could be taught during the first 2 years of secondary school without the aid of qualified teachers and conventional laboratories. This teaching guide, designed to be read in conjunction with the related student guide, includes instructional strategies, lists of required materials, laboratory procedures, and other information for activities and experiments in a unit on energy. During the unit, students observe what is happening around them, relate their observations to energy, complete experiments on forms of energy (including heat, light, kinetic, electrical, and potential energy), and investigate energy conversions, energy chains, and alternative energy sources (hydroelectricity and solar energy). Two summaries are included to highlight the important aspects of the unit. Each section in this guide corresponds to a given section in the student study guide. (JN)