I happen to know that this particular boy loves to build things. His favorite thing is taking boxes of different sizes and cutting them into various shapes to make whatever he's imagining at the time.houses, "furniture", rockets, etc. His parents have always made sure that he has plenty of random material he can use for his building activities, including a "mud pit" in the back yard, similar to a small sandbox. I believe that his prior background in utilizing a variety of materials helped to enable him in this task as well. He has learned, on his own, how things fit together and how to form materials like mud into various shapes for different uses. While I don't believe he spent time thinking about the way his brain and eyes processed the information in front of him, he did spend time thinking about the task at hand through the lens of the information processes he had gained through prior experience. He was able to evaluate the balls, and then spend time modifying them to complete the task of making them be the same size. He then had no doubts about the different shapes containing the same amount of play-dough and reasoned that since he had made them the same, they continued to be the same no matter what shape they took on. I believe that all of these factors contributed to his reasoning and performance in carrying out this task.