Lesson Summary

Alex Towne looking up to the sky, piloting her drone for GIS use.
  • create mental maps about their region.
  • use powerful GIS software to better understand the scientific study they have been participating in and its findings.
A stack of books and computer tablet in a classroom.

Materials


Time Required

An ArcGIS Online map of the rivers and lakes of Illinois, Indiana, Ohio, Michigan, Minnesota, Wisconsin, and Ohio. Major cities, lakes, and rivers are labeled on this map.

Lesson

  • Engage students by asking them to draw a map of the Great Lakes region or a river in your area, from memory. They should use a full sheet of paper and make their maps as accurate as they can without looking at any references. Ask them to try to include the details such as those below:
    • State and/or country boundaries
    • Rivers and streams
    • Boundary line of an entire river basin: the area of land that drains into it
    • Labels and/or a map legend
    • The Center for Great Lakes Literacy recommends the lesson called “How Well Do You Know the Great Lakes?”. Use the “strings” activity to accomplish this particular engagement. | LINK
  • Pass out materials, if necessary, and circulate through the room to answer (and ask) questions. After about five minutes, or whenever students start to run out of ideas to add to their maps, ask the students to show their maps to a neighbor and discuss them briefly. After a minute, ask for a volunteer to share their mental map with the class using a document camera if one is available, or a digital image of it displayed via a computer/device and a data projector.
  • Show students an ArcGIS Online-created map of the Great Lakes region, or you could choose a map of a local watershed. Lead an interactive discussion about the states and/or provinces shown, rivers shown, etc. Then explain that the students will be able to add their own data points on a similar interactive map to help professional researchers, wildlife managers, and the community at large.
  • Demonstrate for students how they submit their data through the iNaturalist form for the Crayfish Study, linked in materials, if they have not yet done so. Explain that once all of the groups submit their data, they will be able to use the online map to help compare their data with that of other groups.
  • Show students how to access the data using your ArcGIS Online account, as shown in the “Exploring Data with ArcGIS Online” handout linked in materials.
  • You can download the data from iNaturalist and add it to your ArcGIS Online maps:
    • Go to the iNaturalist Great Lakes Crayfish community homepage | LINK
    • Scroll down just a bit and click Export Observations > CSV on the right side of the screen. “CSV” is in smaller type.
    • When the data has been exported, extract the data from the zip file in your file explorer.
    • Go back to ArcGIS Online, click the “+” symbol, then “Add layer from file.” Click on the downloaded iNaturalist CSV file. Click “Next” for the next few screens and then “Create and add to map.”
  • Demonstrate how students can work with their group to analyze the data and present it visually. If they have never used the software, you should either provide them with a brief tutorial, or you might suggest they work through one or more tutorials online, such as those presented here: | LINK.
  • Students can change base map layers, customize symbol styles, or use the Find Hot Spots tool to identify areas with higher crayfish sampling activity. See more ideas here: | LINK
  • Tell students they should be able to share at least two interesting visualizations of the crayfish data and be ready to discuss them with the class. For example:
    • How did their observations differ in different parts of the waterbody where they sampled?
    • How far away they are from a larger waterbody.
    • They could also calculate distance from the school or see how it compares with the other crayfish found in the area (according to the iNaturalist page or the American Crayfish Atlas).
  • Circulate through groups, answering (and asking) questions to help students better use the software and arrive at their own conclusions. After about 15 minutes, or whenever groups start to finish, tell students they will have two more minutes to work. Ask them to be prepared to show and explain their best data visualization(s). If time allows, you can also ask students to explain their visualizations in writing.
  • Allow groups to share and close with a discussion about how the crayfish your class found compares with those found by other groups, such as other classes, U.S. Geological Survey (USGS), and/or the U.S. Fish & Wildlife Service. Include what students have learned about native and invasive crayfish, as well as freshwater ecosystems, in the complete unit. You could also discuss additional research that might add to your understanding of the health of the watershed.
  • After doing the mental maps activity, allow students to use sources to create more realistic maps of your local watershed or regional watershed. They can add your city/town, research site(s), etc. Satellite photographs available via ArcGIS Online or sites like Google Maps can also be used for reference.
  • Ask students in grades 6–12 to read the “Career Connections: Alex Towne, GIS Specialist” article, linked in materials, and then complete the “Could you work in GIS?” activity that follows it in discussion with a partner.
  • Show one or more short videos inked in materials about ArcGIS Online, such as:
    • “A Basic Introduction to ArcGIS Online”
    • “Introduction to ArcGIS Online”
  • Ask students to write in journals or notebooks about what they learned about your area, ArcGIS Online, native and invasive crayfish, etc. throughout the lesson and unit.
  • Have a more robust discussion about the concept of a watershed (basin). For instance, discuss how each term describes an area of land that drains precipitation to a river, lake, ocean, etc. Ask questions to get students thinking more about their role in the watershed, such as:
    • Where do oil and trash go after it rains?
    • How are organisms impacted by humans?
    • What can we do for a future with more life?
  • Obtain maps of a smaller watershed around your school and ask students to color in the watershed. Good sources of this information include your local soil and water conservation districts and USGS.
  • Do one or more of the ArcGIS lessons listed in the “Expand Knowledge + Skills” section below.
  • Review student mental maps related to their watershed and those they created with the software, their analyses of the crayfish data, etc.
  • Review completed “Could you work in GIS?” activities and provide feedback.
  • Assess levels of oral participation and student understanding of the concept of a watershed, how ArcGIS Online can be used to visualize and interpret data about it, etc.