The purpose of the study is to investigate a second-grade child's concept of spatial orientation. Shou-Hao (pseudo name) was interviewed 12 times via the method of a teaching interview. The researcher explored how Shou-Hao developed his concept of spatial orientation. Analysis of collected data revealed that he was able to illustrate strong spatial orientation skills in the following ways: 1. Pointing out a direction in terms of the character of the observer or the object being observed. 2. Pointing out the relative direction between two objects by locating himself to difference reference points. 3. Using a sensory-measurement method to compare the difference between two distances and then measuring it by taking two basic units. 4. Creating multi-measurement units. 5. Considering distance as the length of a path from one moving object to another. 6. Verifying position through the direction, distance, or length. 7. Representing a region by left/right and front/back sides.