This project examined whether the teaching of microorganisms to young children could be effective under the support and guidance of an adult. In a designated "Research Center", used to simulate laboratory research, the growth of certain harmless molds and bacteria was employed as the vehicle for the study. Seventeen first grade children, ranging in age from 5 years 11 months to 7 years and 8 months, participated in weekly classroom experiments involving elements of microbial culture, observation, and drawing pictures of experiment results. The project was structured and designed to permit and encourage children to interact with one another and to engage in inquiry, allowing them to construct knowledge jointly. Through the use of discovery-based and manipulative activities, young children came to understand some of the visible properties of mold and bacteria and how they affect the students' daily lives.
This study showed that, under adult guidance and support, young children can acquire a knowledge and interest in the realm of microorganisms. Data collected for assessment included interviews, learning logs", observations, and a final writing exercise. Although children expressed little prior knowledge of microorganisms, they displayed high levels of interest, enthusiasm and curiosity to investigate, experiment and learn. Recognition and recall indicated good retention.