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 three-part unit focusing on: (1) plant and animal cells; (2) growth and reproduction; and (3) human reproduction. Experiments provided include examining plant and animal cells, preparing models of these cells, and dissecting a rat. Because students may come from traditional homes where various topics in this unit are not discussed (such as human reproduction and family planning), it is suggested that sections containing these topics may be read silently. Each section in this guide corresponds to a given section in the student study guide. (JN)