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Using data provided by the National Assessment of Educational Progress (NAEP), this paper probes into the extent that curriculum content and organization, instructional methods and modalities, teacher quality, and other opportunity to learn (OTL) factors account for varying levels of geography achievement at the eighth-grade level. Hierarchical linear modeling (HLM) was used to estimate the strength, direction, and statistical significance of student- and teacher/school-level OTL variables as predictors of geography achievement. The HLM method accounted for data clustering, producing an effect estimate for each predictor while controlling for the effects of all other predictors. Controlling for OTL variables accounts for some but not all of the geography achievement gaps associated with race and other student characteristics.