This mathematics teacher's manual contains ten sample lessons on population growth and demography that were adapted from materials produced in several countries in Asia and Oceania. Among the mathematics concepts and skills students apply during these lessons are set theory, cardinal and ordinal numbers, frequency tallies, percentages, ratios, averages, inequalities, and the use of graphs and tables. Activities are designed for lower primary through high school students. Topics investigated include family size, fertility rates, age-sex pyramids, dependency ratios, and population projections. A scope and sequence chart illustrates how teachers can integrate population-related issues into the regular mathematics curriculum. (WB)