For my interview, I asked a third grader, Jacob, to spend some time with me in the library after school. His mom is the school’s librarian. Per this occasion, I developed a set of questions about place value.
Initially I asked questions to know him more, such as what is his favorite subject, and he said Math, what is his favorite math lesson, and he said times fact. When I asked him, what is place value, Jacob, mentioned that they were supposedly study it in second grade, but they didn’t so they just started to study place value. Other questions were about the way the teacher introduced the concept of place value, and if he remembers any strategy.