Despite longstanding emphasis on transportation in early social studies, practically no information exists about developments in children’s knowledge and thinking about the topic. A dissertation study done in 1947 tested fourth through ninth graders’ understanding about a variety of social concepts (Bates, 1947). Transportation was one of the concepts that the author found to be familiar to students at all of the grade levels included. That is, most of even the fourth graders were able to define the term correctly. Unfortunately, this study did not include the K-3 grade range.