There are some great resources to use with for reading the Bible one-to-one with teenagers.
Start is a 29 study booklet, aimed at non-Christians and new Christians. Costing only £3 (so that's about 10.3p a study!), one of its best features is that it doesn’t simply do gospel basics, or Christian living basics: it does both.
One of the best reasons for one-to-oneing with a teenager is that it models to, and equips, them to read the Bible for themselves. One way of doing this is to use some printed regular Bible study notes; you do a study (or two) together when you meet up; then you each do three or four during the rest of the week on your own; and then share what encouraged and challenged you the next week before moving on to the next study in the book.
That way, when you finish one-to-oneing with them, they (and maybe you!) will hopefully carry on using those notes to read the Bible on their own. So why not grab some Engage notes, written for older teens: just £4 for 90 studies, bargain!
A couple of things worth remembering: always get parental permission! And make sure there’s a games console involved for most teenage lads (I have no idea what the female equivalent is!)
For a short introduction to what one-to-oneing is, just click here.