Zach, Emily, David, and Jennifer were finished with lunch and began playing with drink straws. Each one was making a line design using either 3 or 4 straws. They had just come from math
class where they had been studying special angles. Zach pulled his pencil out of his book bag
and labeled some of the angles and lines. He then challenged himself and the others to find all
the labeled angle measurements in Zach and David's straw designs and to determine whether
the lines that appear to be parallel really are parallel.