Student graphs of Dr. Post’s long term data from Greenland are shown here. Eighth graders created the graphs on their iPads, using the data shared on the APPLES website. Dates of emergence are shown for tundra plants from one of three study sites: Doc, Bashful or Dopey. Dates are based on the Julian calendar; for example, day 155 on the Julian calendar is June 4th. The activity helped students understand trends in data and helped them see that scientific data isn’t always neat and tidy! In most cases, students observed that the dates of emergence for plants has gotten earlier during the ten years this data was collected.