The concept of 'cognitive load' refers to the total amount of mental effort being used in the working memory. In educational settings, instructional design often aims to manage cognitive load to optimize learning. According to cognitive load theory, learners have limited working memory capacity, and if the complexity of the material (intrinsic load) is high, additional demands from the way the material is presented (extraneous load) can hinder learning. However, effective design can promote 'germane load', which is the effort devoted to processing and understanding the underlying structure of the content. Recent studies suggest that interactive learning environments, while engaging, may inadvertently increase extraneous load if not carefully structured, thus reducing the potential benefits of active participation.