A new worksheet is available covering the chords in the Mixolydian mode. This worksheet is part of a series of worksheets that teach your student how to harmonize the modes and figure out which chords fit in each mode. This will help your student understand the modes as well as learn how to apply them.
Access the worksheet here: WMO-05 Chords in Mixolydian Mode
The worksheets on the other modes are available in the Lesson Materials section.