Update
Predictions
In this example students predicted an emerge month and a bloom month. Each student made one prediction for each event. Then the students made a graph. The graph stays in the hall all winter. "Great opportunity to integrate math and science," wrote Frances Koontz.

"Almost all of our tulips bloomed. We think this is early. Today is cold and cloudy. Most people did not predict March."  Bowie, Maryland on March 30th.

Rockledge Elementary, 4th grade.