A picture is worth a thousand words! That saying couldn’t be truer than when it comes to data. It is so much easier to understand data when placed in picture form, such as a histogram, than to have a lot of numbers and/words describing the data. A histogram is simply a picture that shows data in ranges using bars of different heights.
In the activity, Histograms, students organize data in frequency tables and create histograms. First, they learn to divide the data into equal intervals. Then they determine the frequency in each interval to create the bars for the histograms. The dynamic nature of this activity allows students to “click” to add or remove tallies when creating frequency tables, and drag bars to desired heights to create the histograms. Creating these histograms helps students to better understand and interpret the data.