Mathematics and Society - OS X Lion Server

The students build a model which shows the distribution of land, population and foodamong the continents.Let the classroom be the world.Land area1 1(or 25 or 30)desks so thatsizes. For example, North America has about15 of the world's land, so it would be representedby 4 desks grouped together.be obtained from Picture These Percents.PopulationEach desk could representof the world's land area.they are grouped by continentStudents stand or sit byData candesks in proportion to that continent's pop-1, h d ,11 .u at~on. Eac stu ent ~s 20' 25 or 30 aga~n(2~ is about 150 million people). With 2~being used as the fraction, North America(280 million people) would get 2 students.Food120MoveHave 25 penny candies, empty food containers or pictures of food and dividethem according to the part of the world's food supply that each continent produces:Latin America and Africa (1 each), Asia and Europe (8 each), North America (7).Use representations of other limited resources (e.g., oil) and try trading or borrowingto survive~Ask the students where they would liketo live or dislike to live, based on whatthe model shows. Discuss the implicationsof things like amount of land vs. population,population vs. amount of food, etc.IDEA FROM:Teaching Population ConceptsPermission to use granted by The Office of Environmental Education, Olympia, Washington191