When people take up guitar lessons a lot of time is spend on basics, matters a lot people could takle in their own time. Once you got to grips with some of the basics your guitarlessons will be more valuable and also more enjoyable since you are able to make music.
Before you take up guitar lessons try to learn some of the basic open chords such as G, Em, D, C and Am.
Go through some simple songs which use some of these chords. No need to get those chords to sound perfect yet but see if you can make them sound like a chord, be able to move from one to the other without too much trouble.
To help you with playing single strings get yourself a basic tutorbook. Most of these books deal with similar topics such as using your fingers correctly, learning to play basic, open chords, learning to read notes on the fretboard in the open and first postion. Most of these books do come with a CD, take the time to listen to the CD and make a start with what the book has to offer. No need, at the moment, to play any of the material perfect. It is all about making a start. Once you make a start with your guitar lessons you will treat the book in a different way, for now the book is just part of your playing materials.
Any of the above does take some discipline, for some people this approach will work, others may need more guidance for the initial start and the guitarlessons form part of making that start dealing with matters such as fingering open chords, playing individual notes on high E string and other ideas to get your started to play the guitar. The most important matter is that any form of learning and time spend with the guitar should be a enjoyable experience, something you look forward to do in your daily routine.
See you soon again,
Eddie