You can see these stitches in action as you watch our video tutorials (just click on the underlined text):
Row 1: With Color A, ch 21, Sc in 2nd ch from hook (1st skipped ch does not count as a st, here and throughout), sc into next 3 sts, [dc in next 4 chs, sc in next 4 chs] across
Row 2: Ch 1, turn, sc in next 4 sts, [dc in next 4, sc in next 4] across
Row 3: With Color B, ch 3 (does not count as a st, here and throughout), dc in next 4 sts, [sc in next 4, dc in next 4] across
Row 4: Repeat Row 3.
Rows 5-6: With A, repeat Row 2.
Repeat rows 3-6 to continue working this stitch pattern.