Recent studies demonstrate that significant learning gains can be achieved when instructors take intentional steps to address the affective components of learning. While such efforts enhance the outcomes of all students, they are particularly beneficial for students from underrepresented groups and can reduce performance gaps. In the present…

The ability to interpret and reason from Tree of Life diagrams is a key component of twenty-first century science literacy. This article reports on the authors' continued development of a multifaceted research-based curriculum--including an instructional booklet, lectures, laboratories and a field activity--to teach such tree thinking to biology…

The cAcL[subscript 2] approach (concept Advancement through chemistry Lab-Lecture) incorporates three major educational methodologies into one: a student-centered approach, the full integration of lecture and laboratory formats, and hands-on activity based-instruction. This format has been tested for cognitive and attitudinal gains in students and…