Today’s guest blog post is provided by Joshua Harms, part of the Iowa AmeriCorps 4-H Outreach program, serving with Water Rocks! in 2018-19.
The work that the Water Rocks! crew performs is truly amazing. Traveling to schools and teaching young students about ways to protect our natural resources is such a great thing. Every single one of our modules is on a different topic of conservation. Over the next several months, I’ll be sharing some insight into the different modules that we teach to our target audience of upper elementary and middle school students, to give you a behind the scenes look into how our classroom outreach programs roll!
Our best module is our watershed presentation. We start off with introductions and a trivia/evaluation question, then we get right into it by explaining the definition of natural resources. After we have explained the definition, we ask the students to give some examples of different natural resources. When that is complete, we introduce our major word of the day which is watershed.
We usually ask the students if any of them know what a watershed is. We then show them the definition and break it down in a couple different ways. First we have them cup their hand in front of them and we explain that the crease in the palm of their hand is a river, and their hand around it represents the land making up the watershed. We then have them “make it rain” on their hand/watershed and we ask them where all the water sheds off to. Another way to explain watersheds is with the concept of a cereal bowl and how the milk always flows to the bottom.
Next we show the students that watersheds come in many different sizes. After that we show them a map of the US which contains the 4th largest watershed in the world by the name of the Mississippi River Watershed. This map helps the students see how all our waterways are connected and that everything we do on the land eventually affects our water. This concept is the main thing we are trying to get the students to understand.
At this point we allow for the students to be creative with our game called We All Live In A Watershed! We give students a piece of riverfront property and an imaginary $5 million to build whatever they would like on their piece of land. When the students have completed their drawings, we go through a tour of the watershed and see what everyone had drawn. We continue on to then show them what the river water might have looked like in Iowa approximately 200 years earlier, and that our landscape was much different, primarily covered with tallgrass prairie.
Fast forward back to today. We then discuss with students pollutants that could get carried into the water, such as trash, soil, chemicals, oil, and dog poop. We then start the second part of the game which involves the students picking the most prominent pollutant coming off of their piece of land. They then come up to the front and we give them a cup of water with our biodegradable example of the pollutant. After everyone has acquired their cup of water, we have the students one by one pour their cups into the jar representing the river, demonstrating that all of the water drains to one common point in a watershed, and to show how all the pollution has really affected our water. We then talk with the students about some of the different things they could do to help the current water situation – we’re all in this together and it’s really encouraging to hear their ideas of ways to keep the land and water around them healthy!
We close with the same trivia/evaluation question that we asked in the beginning in order to gauge students’ change in comprehension after just a short 45-minute presentation. From our Water Rocks! 2017-18 School Visits Evaluation Report, 36% of students could correctly define a watershed prior to our classroom presentation. After our Water Rocks! lesson, 95% of students could correctly define a watershed.