Today we talked about what tool a meteorologist would use to measure rain.  We talked about without the tool you would only have general descriptions of the level of the rain such as drizzle or pouring.  We talked about how the tool needed to be able to measure in inches the amount of rain that fell with any given storm.  They brainstormed things that would need to be present in the design for the results to be valid.  Then they designed and we tested their rain gauges.