The abstractness of the chemistry concept can be understood easily through chemistry learning using multiple representations. This article used the Systematic Literature Review (SLR) method to review eleven articles published from 2012 to 2021 and focused on chemistry learning using various representations. The articles are systematically obtained…

Presents descriptions of play reflecting recent theories, including the psychoanalytic works of Freud, Erikson, and Peller; Piaget's developmental theory (with discussion of Sutton-Smith); and the views of Smilansky and Parten. (AS)

The second of two linked articles develops two more mapping typologies: first, an approach to the what, why, and how of leaders, leading, and leadership; and second, the presentation of possible positions that knowledge workers can take when they use and produce knowledge about leadership practice. (Contains 10 notes and 73 references.) (MLF)

This volume examines conceptual frameworks and models that flow from scholars' definitions and operationalizations of social class: status attainment theory, human capital theory, the financial nexus model, Bourdieuian theory, and critical race theory. Since students often have multiple social locations that affect their educational process, the…

The first of two linked articles discusses leadership and associated concepts. Outlines and illustrates a mapping typology built around five knowledge domains (conceptual, critical, humanist, evaluative, and instrumental) and seven factors (purpose, focus, context, method, audience, communication, and impact). (Contains 9 notes and 93 references.)…

Self-directed learning (SDL) is among the most productive areas of research in adult education. Malcolm S. Knowles is credited with a comprehensive synthesis of adult teaching and adult learning principles. Andragogy, the art and science of helping adults learn, lies at the heart of Knowles' work. Lucy M. Guglielmino theorized regarding the…