As the United States falls farther behind other countries in standardized math assessments, the author seeks to understand why U.S. students perform so poorly. One of the possible explanations to U.S. students' poor math performance may be math anxiety. However, math anxiety in elementary school children is a neglected area in the research. The author aimed to close the gap in knowledge about math anxiety in children by examining contextual factors related to math anxiety in second-grade children. The author used the theory of triadic reciprocity as the theoretical model in this study in which children (n = 91) and their parents (n = 81) completed a series of self-report measures on math anxiety, math self-concept, reading self-concept, math self-efficacy, and aspects of the home math environment. Results indicated that the strongest predictor of math anxiety in second-grade children was their level of math self-concept. The addition of environmental factors did not significantly increase the amount of variance explained in math anxiety.