beg  beginning rnd(s) round(s)
CC  contrasting color RS right side
ch  chain sc single crochet
cl  cluster sk skip(ped)
dc  double crochet sl st slip stitch
dec  decrease sp(s) spaces(s)
hdc  half double crochet st(s) stitch(es)
inc increase tog together
lp(s) loop(s) tr treble crochet
MC main color WS wrong side
oz ounce(s) yd(s) yard(s)
rem remaining yo yarn over
rep repeat(s)    

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Fold length of yarn in half. Insert crochet hook into stitch and pull a loop through. Pull both strands of yarn through the loop and tighten the loop