Go back to that parking lot and practice parallel parking.

Take some cones or a couple of cardboard boxes with you to use in place of real cars. Your fenders will thank you.

Parents, always have your teen explain to what they see ahead, from the horizon to the front of the car.

Example: There are pedestrians on the right, stopped traffic two blocks up, the light one block ahead is red, there is a car approaching, the car in front of me just turned on its right turn signal etc.

Make sure you don't forget your turn signals.

Practice pulling out also.