One of the most critical issues that faces humanity is the world population boom. The high rate of population growth can directly affect sensitive issues such as the state of the environment, economic development, health, resource uses, and consumption. Though we have achieved the capability to override many of nature's limitations, we live in a limited space on limited resources. Many feel that the quality of life for future generations is being severely threatened by the continued rise in human population growth. These facts and trends should serve to augment the importance of educating young people about the issue of population. This curriculum guide represents a deliberate attempt to focus on population as a numbers game, since in order to understand the issues surrounding population, it is necessary to first understand the scientific or mathematical facts of population growth. Activities include: (1) "A Sense of Census"; (2) "Sheba the Amoeba"; (3) "The Potential of Exponential"; and (4) "Growing Globally." Each activity provides a brief description, a concept statement, objectives, background information, a list of subject areas and skills, a list of materials, and the procedures used to conduct the activity. (CW)