1. Create a new Shapefile Layer

  2. Select the name and save location by clicking ... Make sure the save location is in a local folder designated for qgis projects.

  3. select the polygon type

  4. Turn on editing by clicking the pencil.

  5. Click Add Polygon Feature

  6. Draw. Place more points by clicking further along the edge, until the shape you’re drawing completely covers the field. After placing your last point, right-click to finish drawing the polygon. Notice the school was excluded.

  7. Set the id to 1

  8. You now have a polygon! You can see that it exists as well as toggle visibility in the Layers panel.

  9. Turn off editing by clicking Toggle Editing and click Save.