Tag: nonlinear

Leaves are pretty but …

Brian has spent too much time thinking about his leaf raking. He’s worried about doing the job alone and about how long the job would take with different numbers of rakers. In this activity students see the inverse relationship between…

Approaching Seven Billion people

To see the present world population, go here.  http://www.worldometers.info/world-population/ During the Fall 2011 the 7 billionth human on earth was born. The counter mentioned above gives updated approximations of the current world population.  When will we hit 8 billion people? …