Mitigating the situational factors that give rise to state boredom is a consistent challenge facing educators. Despite the growing amount of literature devoted to the construct, the field has yet to arrive at a consensus regarding a clear theoretical or operational definition. Subsequently, inconsistencies exist in the assessment methodologies, research findings lack generalizability, and strategies for mitigation in educational settings remain elusive. In this cross-disciplinary analysis, the extant literature on state boredom is critically reviewed and synthesized, and a two-dimensional definition of state boredom as an unpleasant (subjective), low-arousal (objective) experience is proposed. Findings from the technological advances of the last decade that allow for the objective measurement of physiological states are used to inform recommendations for empirically sound assessment methodologies. Finally, the proposed definition of state boredom and related assessment strategies are discussed with respect to implications for enhancing educational practices. Emotions are of critical importance for cognitive development and optimal learning (Linnenbrink-Garcia and Pekrun 2011; Schultz and Pekrun 2007). However, not all emotions are equally relevant to academic achievement. In fact, research has suggested that "basic" emotions (anger, sadness, fear, disgust, happiness, and surprise; Ekman 1992) are rarely experienced during learning sessions (Craig et al. 2008; Lehman et al. 2008a, b). Consequently, researchers have recently begun to distinguish between "basic" and "academic" emotions (Pekrun 2011). Academic emotions refer specifically to those that