Discover KIDS - Crochet 1

Have you taught 'Discover KIDS - Crochet 1'? Did you have any problems pinching the yarn and getting it into a bead? If so, how did you solve it? Did you go to a thinner yarn or solve it by another method? Did you run into any other problems? If so, what were they? I've scheduled my first 'Kids' class and am looking for any thing I should plan ahead for. Thanks for the help.