The ZPC podcast is a weekly conversation regarding how people learn and teach mathematics and science. Brought to you by the AIMS Center for Math & Science Education and partially funded by a grant from Passion in Education, our conversations are casual, yet seek to dig deep into how learning takes place in the brain of children and adults. Our philosophical foundation is that of the Radical Constructivist, and our focus is generally upon children and their teachers. Occasionally our conversations wander into other areas of interest to teachers of these subjects: integration of the two topics, international perspectives, the infusion of technology into the classroom, finding joy in learning, and author interviews to name a few.