Individualized biology activities for secondary students are presented in this teaching guide. The guide is divided into five sections: (1) investigating bread mold; (2) investigating transpiration; (3) completing a botany project; (4) collecting, preserving, and identifying leaves; and (5) writing up science laboratory investigations. The sections on bread mold, transpiration, and leaves include teacher's guides and students' pages. The students' pages contain activities requiring reading, writing, research, experiments, and drawing. The teacher's guides include student objectives, lists of materials needed, optional activities, and answers to quizzes and questions. Suggestions and instructions for both the teacher and the students are given for the nine-week botany projects and for the science laboratory write-ups. The write-ups are required of students who wish to conduct independent investigations. This document is part of a collection of materials from the Iowa Area Education Agency 7 Teacher Center project. (EM)