Ch 3, yarn over, insert hook in 3rd chain from hook, yarn over and pull up loop (3 loops on hook), yarn over and draw through 1 loop (1 chain made), yarn over and draw through all loops on hook—1 foundation half double crochet. *Yarn over, insert hook under the 2 loops of the “chain” stitch of last stitch and pull up loop, yarn over and draw through 1 loop, yarn over and draw through all loops on hook; repeat from * for length of foundation.