A complete beginner would do well to hit every club off a tee (even if a very low tee) at the range at first, just to get the feel of hitting the ball and making consistent, solid contact, starting with the short irons. When you can hit the ball consistently off a tee, then put it on the grass or mat and again start with your shortest irons and work your way up.

It doesn't sound very exciting, but it will save you--and the golfers in the groups behind you on the course--a lot of frustration if you learn to hit the ball consistently at the range before you take to the course.