If we want sustainable development, we need to information about the population and countries on all the Earth. How many people? How old are they? Which language do they speak? What religion do they practice? and so on. Many of those statistics will surprise many of you. The following book offers a nice story for junior students.
http://www.amazon.ca/If-World-Were-Village-World%252019s/dp/1554535956/ref=sr_1_fkmr1_1?ie=UTF8&qid=1402516705&sr=8-1-fkmr1&keywords=if+the+Earth+was+a+village++smith+second+edition
The book also exists in French.
The following program ask the questions regarding age: How many people in the global village are in each of the age bracket mentioned.
