Rivers and Flash Flooding Streams of Data is research project funded by the National Science Foundation (NSF) in which lessons were created and tested to determine how well students could use real-world data on rainfall and river height to understand the occurrence of flash floods. Read the full project description on the Education Development Center Oceans of Data website. Lesson Resources This dynamic lesson sequence on flash flooding in Ellicott City can be tailored to fit your classroom needs, whether you have just a single 45-minute class or a full 7-day schedule.