Calling upon human powers to work mathematically

Let me start with a question: When did you first work mathematically?

What do you think about when considering this question? Does your mind go back to early school days? Perhaps to some early counting activities before you started school? Or perhaps to other events? This is not an easy question to answer. Of course, we cannot recall many of our early experiences, so perhaps you can consider the question in terms of young children who you know or have heard about. When are they working mathematically? Have they worked mathematically earlier? How early? What might they have been doing to be working mathematically? [...]