Understanding 'Cognizant' in Context

In the realm of psychological research, the term 'cognitive load' refers to the total amount of mental effort being used in the working memory. When the cognitive load is too high, it can hinder an individual's capacity to process information. This phenomenon is particularly relevant in educational settings, where overwhelming students with information may lead to decreased learning outcomes. For example, while designing a lesson plan, an educator must be cognizant of the cognitive load imposed on students to facilitate optimal comprehension and retention.

How is 'cognizant' intended in the sentence above?