Students find city temperatures and analyze their means to find the standard deviation. They calculate the standard deviation of monthly temperature means.

Students use Internet research to determine the amount of carbon dioxide produced per unit energy for biomass and coal. In this alternative energy lesson, students research to find out how much energy and carbon dioxide several coal and...

Fourth graders determine the range, mean, median and mode using a computer spreadsheet. An identical set of calculations is done without using a computer. The results of each method are compared. They calculate the mode, median and range...