Rainfall catch by Fred Frog

Subject this week is Catch.....
well this item gauges rainfall - Tell children to place their rain catcher in a not so busy area in their yard at home. Ask them to check their rain catcher every morning. When there is some water in it, record the level and bring it to school. (dump the water out so a new recording can be made the next morning). At school, have the children record their rain level with the day's date on their own graph.
After a month of recording, add up all of the rain levels and figure out the average precipitation.