Critical thinking (CT) is widely regarded as an important competence to obtain in education. Students’ exposure to problems and collaboration have been proven helpful in promoting CT processes. These elements are present in student-centered instructional environments such as problem-based and project-based learning (P(j)BL). Next to CT, also higher-order thinking (HOT) and critical-analytic thinking (CAT) contain elements that are present in and fostered by P(j)BL. However, HOT, CT, and CAT definitions are often ill-defined and overlap. The present systematic review, therefore, investigated how HOT, CT, and CAT were conceptualized in P(j)BL environments. Another aim of this study was to review the evidence on the effectiveness of P(j)BL environments in fostering HOT, CT, or CAT. Results demonstrated an absence of CAT in P(j)BL research and a stronger focus on CT processes than CT dispositions (i.e., trait-like tendency or willingness to engage in CT). Further, while we found positive effects of P(j)BL on HOT and CT, there was a lack of clarity and consistency in how researchers conceptualized and measured these forms of thinking. Also, essential components of P(j)BL were often overlooked. Finally, we identified various design issues in effect studies, such as the lack of control groups, that bring the reported outcomes of those investigations into question.

In this article, we share what we learned about undergraduates’ struggles in writing quality summaries, comparison texts, and argumentative essays that were components of a unique course, Learning How to Learn. This course was designed to address core psychological issues that impede optimal learning for students from all majors, many of whom are preparing to attend professional or graduate school. Although never intended to be a course devoted to academic writing, the struggles we uncovered made it apparent that without addressing these students’ writing difficulties, especially with argumentation, optimal learning was not achievable. For each form of writing central to the course (i.e., summaries, comparisons, and argumentation), we not only describe the challenges we have documented over the past six years, but also the instructional responses we instituted to counter those challenges. We conclude by sharing insights we have garnered from this experience that may serve others who are confronting similar issues in their students’ writing abilities.