...

1. Again, click the Table Options button and select Joins and Relates > Remove Join(s) à Remove All Joins.
2. Symbolize the DrainageLines layer using graduated symbols based on the StrahlerOrder field.
3. In the Table of Contents, turn on only the Outlet, DrainageLines, and CatchmentPoly, layers and turn off all other layers.
   
   Image Added

FOR MAP LAYOUT TO BE TURNED IN

Create an 8.5 x 11 layout showing the vector catchment basins along with the stream links symbolized using graduated symbols according to their Strahler order and the outlet point that you used.

...

1. An exported map of DEMRecon layer turned on.
2. Create an 8.5 x 11 layout showing the vector catchment basins along with the stream links symbolized using graduated symbols according to their Strahler order and the outlet point that you used.