DescriptionThis is the seventh clip in a series of seven of building towers four tall problem using red and blue unifix towers. They had sixteen towers and other students also confirmed the solution was sixteen. However, Brian continued to look for another tower to make it seventeen. Brian finds RRRB and added it to the collection. He announced excitedly that they are back in business. Jeff told him to “face it, it is sixteen.” Later, they confirm to the researcher that they have sixteen towers because Brian found a duplicate. They continued to recording on a large paper. At the end they had represented their towers with pictures of the physical towers they had built, shading with blue and purple colors.