Middle schoolers identify how to use a scatterplot to compare two sets of data to determine if they are related. Then they identify and describe the definition of regression line (the "line of best fit"). Students also identify how...

In this Benford's Law learning exercise, high schoolers read about the first digit frequency of numbers. High schoolers solve 3 problems about sunspot numbers, solar wind magnetism and the depth of the latest earthquakes by using on line...