Taking a group through the lessons is a good way to help them fill in the gaps in order to get your first disciplers going.  

I recommend that you take them through Lessons One and Two and meet with every one, personally, one on one, so they can get a "feel" for what it's like to meet one on one. This way they can see how you want them to relate to their disciple(s).

In those meetings, demonstrate how you disciple by showing them how the lessons work, what you did to prepare, how you want them to handle questions, and give them assignments for writing God's Word in 1st John (see Lesson Two, Daily in the Word).

Meet with each of them 3 times and you will be amazed how they can get started with their own disciple, or you may find out that you don't want to assign them a disciple because they are not ready yet.

You can assign them their own disciples and then meet with the group in the future to cover Lessons Three and Four and so on, you just need to be ahead of them and their disciples.

They will learn to disciple when they have to meet together with their own disciple.

Explain that they are growing together spiritually with their own disciple. 

When you train a group, you may not realize that an individual is not ready to meet with a disciple one on one, this is why you should meet with them personally.