This learning resource explores the concept of population growth through the lens of a study involving goldfish. It introduces two types of growth patterns: exponential (J-Curve) and logistic (S-Curve). In the first part, students learn about exponential growth by observing a goldfish population that doubles every month in an environment with unlimited resources. They engage with a data table showing this growth and are prompted to sketch their own J-Curve. The second part shifts focus to logistic growth, explaining how limited resources (like space and food) affect population size and lead to a slowing growth rate, depicted in an S-Curve format. This resource provides guided activities to help students visualize and graph these concepts while enabling reflections on the implications of resource limitations on population dynamics.