摘要:AbstractThe purpose of this study is to identify the correlation between Math anxiety and metacognitive knowledge. 323 out of 1950 Seventh grade female students were selected by cluster random sampling. The validated Persian version of standardized questionnaires of Chiu and Henry's Math anxiety scale and Swanson's metacognitive knowledge scale were used. Math anxiety was negatively correlated with Metacognitive knowledge (r=-0.48). Moreover, Metacognitive knowledge was negatively correlated with different domains of Math anxiety of learning Math, r= -0.43; of Math evaluation, r= -0.42; of solving problem, r= -0.409; and Math teacher anxiety, r= -0.38. These findings highlight the effect of math anxiety of seventh grade female students in their metacognitive knowledge.