Using waste yarn and a crochet hook the same size as the project knitting needle, make a chain that has a few more stitches than the number of stitches to be cast on. Cut the waste yarn and knot the cut end. Using a knitting needle, pick up and knit a stitch in the back "bump" of each chain stitch until the required number of stitches is on the knitting needle. When the pattern indicates, remove the waste yarn. Starting at the knotted end of the crochet chain, undo a loop of the crochet chain and insert the knitting needle into the stitch that has been freed (this stitch is on the original first row of knitting). Continue to undo the crochet chain until all the stitches are on the needle.