Cyberchase video clip in which Bianca, who is babysitting, must take two girls trick-or-treating on Halloween. Students are asked to determine how the two girls will split their candy equally between the three of them. [3:27]

This Five E's AMSTI lesson plan equips young scholars to divide an object into equal parts. A story and interactive whiteboard activity about sharing food demonstrate the idea of equal halves of circles, after which students attempt to...