Joining should include the following steps:

Assemble tools and equipment.
Read the directions on the compression ring package.
With the treaded end facing the fitting, slide the fitting onto the tubing.
Slide the compression ring onto the end of the tubing.
Slide the fitting onto the end of the tubing.
Hold the fitting securely on the end of the tubing and slide the compression ring and nut up to the fitting.
Turn it clockwise to start.
Tighten the nut.
Repeat the operations until the fitting is installed.

Process/Skill Questions:

What are the relevant safety precautions and procedures for joining copper tubing, using the compression method?
Why is copper tubing used in supply systems?
Can a compression ring be reused? Why or Why not?
What tools are required for joining copper tubing, using the compression method?