This lesson plan is intended for use in conducting classes on photosynthesis. Presented first are an attention step/problem statement and a series of questions and answers designed to convey general information about photosynthesis. The following topics are among those discussed: the photosynthesis process and its importance, the organisms that can conduct photosynthesis, items needed for photosynthesis and factors that affect photosynthesis rate, the way plants receive nutrients, the importance of the plant leaf during photosynthesis, plant leaf components and their function, factors conducive to photosynthesis, the chemical formula for photosynthesis, and the steps of energy production during photosynthesis. Also provided are the following: a glossary of pertinent scientific terms, 4 worksheets, answers to the worksheets, 2 quizzes, answers to the quizzes, 12 overhead transparency masters, and a lesson plan for teaching students to compare plants growing at different levels of light. Included in the lesson plan are an objective, list of equipment needed, detailed steps for completing the activity, and student activity record sheet. (MN)