Also, while coated strings do last longer than non-coated strings they’re also significantly more expensive. Personally, I find that coated strings last roughly twice as long as non-coated alternatives. Since they’re also about twice as expensive, I personally don’t save any money using coated strings. However, depending on how acidic your sweat is your experience may vary.
I have heard how giving you are in so many respects of music schooling and I must say that I am impressed. You remind me of the pure idealism that we had in starting Apple. If I were young, with time, I'd likely offer to join and help you in your endeavours. Keep making people happy, not just in their own learning, but in the example you set for them. 
You need to place one finger on whatever fret you want to bar and hold it there over all of the strings on that fret. The rest of your fingers will act as the next finger down the line (second finger barring, so third finger will be your main finger, and so on). You can also buy a capo, so that you don't have to deal with the pain of the guitar's strings going against your fingers. The capo bars the frets for you. This also works with a ukulele.
Many influences are cited as antecedents to the modern guitar. Although the development of the earliest "guitars" is lost in the history of medieval Spain, two instruments are commonly cited as their most influential predecessors, the European lute and its cousin, the four-string oud; the latter was brought to Iberia by the Moors in the 8th century.[7]
Play each note of the chord one after another (known as playing an arpeggio) to check if any are being accidently muted or need pressing down harder. If you find that you're accidently muting a string with one of your fingers, try lowering your thumb so the tip reaches around half way up the back of the guitar neck. This gives your fingers a better angle to approach the fretboard.
The California Conservatory of Music offers guitar lessons with the most qualified teachers in the Bay Area at both our Santa Clara and Redwood City schools. Whether you're looking to start your young child with Suzuki guitar lessons, preparing for a college audition, or getting reading for an upcoming concert, we can assist you. We offer the Bay Area’s most comprehensive guitar lessons which include technique, sight reading, music theory, and in addition to the private lessons, we offer ensemble, repertoire, and theory classes on the weekends. For students under the age of 8, we ask the parents to be involved in their guitar lessons and practice at home. To better help parents develop in to this role, the first three lessons are dedicated to the parent education class. The child can then begin their guitar lessons. This helps ensures the student’s success and motivation. 

If you're looking for some of our older videos - you can browse the guitar lessons archive. You may also be interested browsing our guitar lessons on YouTube. There you can learn how to play guitar with all of our most popular beginner guitar lessons, rhythm guitar lessons, lead guitar lessons, and blues guitar lessons. We have something for guitar students of all skill levels.

I was lucky enough to meet Justin at the Guitar Institute during a summer school in 2004, and to have some private lessons with him afterwards.  He was the teacher who kickstarted my guitar career and persuaded me that I was ready to join a band.  That was 14 years ago and many dozens of gigs later.  I’m now just finishing a degree in Popular Music Performance.  Justin's online lessons are easy to follow and he has a manner about him which makes you believe that you can achieve.  Where he demonstrates songs, I have found his versions to be consistently more accurate and easy to follow than those of any other online teacher.  On this website you really will find all the skills and information you need to become an excellent musician.  Many thanks. Ian.
This unique degree program combines contemporary music performance training with the rigorous study of traditional disciplines including sight-reading, music history, arranging, conducting, recording and more. The comprehensive program instructs students to demonstrate stylistic depth, creative maturity and professional competence in preparation for careers in today’s music industry.