reading pattern help!!!

I have a pattern for a "throw".
with A ch 5;join w/ slip st to form ring (got that one figured out)
rnd 1: Ch 3, 15 dc in ring; join with a slip st to top of ch-3 (HUH?!)
rnd 2: Ch 1, sc in same st as joining, ch 7, skip next dc, [sc in next dc, ch7, skip next dc] 7 times; join in first dc. Fasten off

and so on and so on. I have no clue and haven't been able to find anything online that spells it out in simple language for me.
Thanks for your time and answers in advance!

Forums: 

Dear Heather,
In most crochet stitches, excluding single, a row or round begins with a short chain which counts as the first stitch. This time, as is usual for double crochet, you were told to chain 3, then make 15 double crochets into the ring, for a total count of 16. To finish this round, you will join the end stitch to the beginning in this fashion: Insert your hook into chain stitch # 3, counting from the ring, and pull up a loop. Pull this loop straight through the loop on your hook, without any yarnover. You have joined the round with a slip stitch.

Round 2 begins with a single crochet. Insert your hook exactly where you did for the slip stitch, and make this sc.

Good luck with the throw. Write again with any new questions as you go along.

Happy New Year.