In this task, students are shown a table of U.S. population data between 1790 and 1860 and are asked to explore whether exponential functions would be appropriate to model relationships within the data. The purpose of the task is to help...

Sometimes called rich fens, find out about these saturated environments that are fed with mineral-rich groundwater and occur at low points or slopes in the landscape where the soil surface is intercepted by the water table.