Students engaged in problem-based learning (PBL) units solve ill-structured problems in small groups, and then present arguments in support of their solution. However, middle school students often struggle developing evidence-based arguments (Krajcik et al., "J Learn Sci" 7:313-350, 1998). Using a mixed method design, the researchers examined the…

The "Golden Key" programme is a preschool education programme that is constructed on the basis of Vygotskij's cultural-historical theory. One of the most important aspects of this theory is not just the unity of intellect and affect, but the fact that the relationship between these two changes during the course of development. In infants, affect…

Background: Emotional and behavioural problems as well as a lack of social competence are common in adolescents with borderline intellectual functioning and impair their social and vocational integration. Group interventions specifically developed for this target group are scarce and controlled evaluation studies are absent. Methods: A…

James Clerk Maxwell "translated" Michael Faraday's experimentally-based field theory into the mathematical representation now known as "Maxwell's Equations." Working with a variety of mathematical representations and physical models Maxwell extended the reach of Faraday's theory and brought it into consistency with other…

This study identifies the kinds of problems teachers pose when they are asked to (a) generate problems from given information and (b) create new problems from ones given to them. To investigate teachers' problem posting, preservice and inservice teachers completed background questionnaires and four problem-posing instruments. Based on previous…

The authors review 24 midwestern institutions that have an undergraduate capstone course. Specifically they focus on accounting capstone courses, discovering that these are used to promote personal and functional skill development in 8 areas: research, problem solving, critical thinking, reflection, synthesis, teamwork, communication, and…

In this study, the effects of reflective self-explanations on conceptual understanding and problem solving are investigated in a domain of computer programming. After completing a multiple-choice test, 33 students were asked to reflect on and explain why their answers were correct or incorrect. Groups were divided for post hoc analysis based on…

This study demonstrates the power of the cultural encounter metaphor in explaining learning and teaching difficulties, using as an example computer science education (CSE). CSE is envisioned as an encounter between veterans of two computer-oriented cultures, that of the teachers and that of the students. Forty questionnaires administered to CS…

Understanding key foundational principles is vital to learning chemistry across different contexts. One such foundational principle is the acid/base behavior of molecules. In the general chemistry sequence, the Bronsted-Lowry theory is stressed, because it lends itself well to studying equilibrium and kinetics. However, the Lewis theory of…

We investigate how much value college enrollment adds to students' critical thinking, problem-solving and communication skills, and the role college inputs play in developing these competencies, using data from a 2009 collegiate assessment pilot study in Colombia. Relative to observationally similar first year students, students in their final…

This paper deals with the "problem" of student retention in higher education. But unlike most, this paper focuses not on the problem of retention "per se" but rather on how institutional leaders think about student retention, completion, and success--how the way they frame their concerns about retention can give rise to a different sort of…

The use of projectiles is a concept familiar to most students, whether it is a classic slingshot, bow and arrow, or even a spit wad through a straw. Perhaps the last thing a teacher wants is more projectiles in the classroom. However, the concept of projectiles is relevant to most students and may provide a means of bringing more authenticity into…

This study examined the representational competence of students as they solved problems dealing with the temperature-pressure relationship for ideal gases. Seven students enrolled in a first-semester general chemistry course and two advanced undergraduate science majors participated in the study. The written work and transcripts from videotaped…

We report a comparative study using "knowledge space theory" (KAT) to assess the impact of a hands-on laboratory exercise that used molecular model kits to emphasize the connections between a plane of symmetry, Charity, and isomerism in an introductory organic chemistry course. The experimental design compared three groups of…

"Teaching mathematics from a sense-making perspective entails more than solving non-routine problems" (NCTM 2007, p. 85). When teachers want students to see mathematics as something that makes sense, they must furnish opportunities for them to solve problems in their own way and use structures that nurture their reasoning and sense making. The…