* Recipes with yeast will often use the term "dissolve yeast in lukewarm water. 110-115˚F is NOT lukewarm to me. It's quite hot! You definitely don't want the water too hot, but if it's not hot enough, the yeast won't activate resulting in minimal rise. That's why I suggest using a thermometer if you're not used to working with yeast.
** Shape can be elongated or rounded, but they do not have to be perfect. These should be somewhat rustic, irregular shaped crackers. Also crackers can be made larger or smaller. It just depends on how much dough you pinch off.