# Eric.ed.gov – Math Activities for Teaching about Aging.

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By participating in these class activities, students will acquire mathematical skills and at the same time learn about aging. Topics related to aging are often quantitative, and therefore, subject to mathematical analysis and procedures. The activities, which contain teacher suggestions and all student handouts, deal with seven topics. In the first activity, “Graying of America,” students extract data from a graph of U.S. population growth to solve problems which illustrate changes in the age structure of society as they and their parents grow older. “Life Expectancy” is the topic of the second activity. Students use actuarial data to compute the probability of surviving a given number of years beyond a certain age. In the third activity, “Compound Interest and Population Growth,” students gain insight into population growth by working through a problem involving compound interest and then applying the same mathematical concepts to a problem involving birthrates and deathrates. The fourth activity deals with “Changing Age Structure and Implications.” Using bar graphs and mathematical skills, students estimate by age groups the proportion of people in society who are economically productive compared to those who are primarily consumers of goods and services. The last three activities deal with social security. Students compute the amount a typical worker can expect to pay into social security and the amount he or she can expect to receive during retirement. They also write a computer program to estimate 1978 revenues and expenditures. (Author/RM)