This unit is designed to teach concepts in science and mathematics to advanced juniors or seniors. The unit consists of four sections: Solar Radiation, The Chemistry of Ozone, Meteorological Factors and the Computer Model. The stated goal is to develop a model of ground level ozone production in the Houston area. The real goal is to introduce problem solving and research skills to students. This unit initiates the process of model development. The beginning is with the sun, the source of the Earth’s energy. Solar radiation is traced from the core of the sun to the Earth’s surface. Equations are explained and developed along the path. Solar radiation is a key component in the development of ground level ozone. The next step is an introduction into the chemical processes that occur in the production of ground level ozone, often called photochemical smog. After that, the meteorological factors that are known to affect the development of photochemical smog are introduced. The final section introduces a statistical approach to modeling the ozone production. Scatter diagrams are used to develop hypotheses. The hypotheses are tested using data from August 1999 and October 1999. Some tentative conclusions are reached. The stated goal, to develop a model for ozone production, is never reached. That goal is still beyond the most expert researchers. The real goal hopefully will have more success. If students know how to ask questions and to work to find answers, the unit will have served its purpose.