This study aims to determine the cognitive structures of students at different educational levels (8th grade and 12th grade) related to acid-base chemistry. The research was designed as a case study and structured in two stages. The first stage analyzed concepts related to acid-base chemistry and their direction and strength in students' knowledge…

The topic of physical and chemical changes is one of the basic and essential issues of both the lowersecondary school science curriculum and the upper-secondary school chemistry curriculum in many countries. The focus of the present study is to investigate the students' cognitive structures on the topic of physical and chemical changes at…

This study aims to determine the changes in the cognitive structures of the 35 participants after ecology-based nature education in Bursa Uludag and its vicinity. This study used a single group pretest-posttest experimental mode where the data was collected by a word association test. It included the key concepts of nature, national parks,…

In order to develop an expert-like mental model of complex systems, causal reasoning is essential. This study examines the differences between forward and backward instructional strategies in terms of efficiency, students' learning and progression of their mental models of the electronic transport chain in an undergraduate metabolism course…

It is widely documented that the density property of rational numbers is challenging for students. The framework theory approach to conceptual change places this observation in the more general frame of problems faced by learners in the transition from natural to rational numbers. As students enrich, but do not restructure, their natural number…

Cognitive scientists investigate mental models (how humans organize and structure knowledge in their minds) so as to understand human understanding of and interactions with the world. Cognitive and mental model research is concerned with internal conceptual systems that are not easily or directly observable. The goal of this research was to…

A study used structure mapping theory to examine the claim that children can understand metaphors based on shared object attributes before understanding those based on shared relational structure. The three kinds of metaphor used in the study varied in whether the shared information forming the basis for the interpretation was attributional,…

This book articulates and defends the "theory theory" of cognitive and semantic development: the idea that very young children just beginning to talk are engaged in profound restructurings of several domains of their knowledge. These restructurings are analogous to theory changes. The children's early semantic development is closely tied…

The effects of teaching with analogies on students' conceptual understanding and explanations of educational computing were examined with three groups of preservice teachers in a computer literacy course. Students who were taught using complete analogies were found to have a better grasp of computing concepts than those taught using undeveloped…

Two studies were conducted to compare the advance organizer and concept elaboration models of instruction with a task analysis approach. It was hypothesized that the concept elaboration group would achieve significantly higher than either the advance organizer group or the task analysis group on concept learning and principle learning. A pilot…

The study of consciousness requires a language for exact and precise communication. This research project investigated how workers from different cultural contexts value information that is relevant to their job performance. Thirty-five randomly selected mechanics, from Sweden, England, West Germany, Italy, and the United States, were selected as…

By the age of 4, children typically have separate schema for relating events in the physical world and for relating events to associated mental states. Generally, these schema cannot be coordinated until around 6 years of age, when the ability to use them together yields a structure for assigning intentionality. This intentional structure develops…