The study of students' use of representations is one of the main topics of physics education research and is guided by the overarching field of semiotics. In this paper we compare two semiotic frameworks, one coming from didactics of mathematics and one from physics education research; "the theory of registers of semiotic…

In this article, we present and discuss a project in which children in two different environments, in Palestinian refugee camps in Lebanon and in the south-eastern part of Norway, were given the opportunity to express themselves through drawings. We investigate how differently--and how similarly--the children express themselves when they were…

Reports and surveys by the U.S. government and international organizations have repeatedly acknowledged the achievement problem in math in K-12 regardless of various efforts (e.g., by the U.S. Department of Education) to diminish it. To address the problem in math achievement in K-12, teachers, scholars, and the U.S. government have developed…

Despite accumulating evidence that cortical motor areas, particularly the lateral premotor cortex, are activated during language comprehension, the question of whether motor processes help mediate the semantic encoding of language remains controversial. To address this issue, we examined whether low frequency (1 Hz) repetitive transcranial…

Wernicke's aphasia (WA) is the classical neurological model of comprehension impairment and, as a result, the posterior temporal lobe is assumed to be critical to semantic cognition. This conclusion is potentially confused by (a) the existence of patient groups with semantic impairment following damage to other brain regions (semantic dementia and…

The etiology of persistent stuttering is unknown, but stuttering has been attributed to multiple potential factors, including difficulty in processing language-related information, but findings remain inconclusive regarding any "specific" linguistic deficit potentially causing stuttering. One particular challenge in drawing conclusions is the…

Recent scholarship on secondary reading calls for a shift from teaching generic literacy strategies to teaching discipline-specific language and literacy practices (Fang & Schleppegrell, 2008; Moje, 2008; Shanahan & Shanahan, 2012). This call for disciplinary literacy instruction (DLI) reflects the growing recognition that literacy…

This study applied volumetric analysis and voxel-based morphometry (VBM) of brain magnetic resonance (MR) images to assess whether correlations exist between global and regional gray/white matter volume and the cognitive functions of semantic memory and short-term memory, which are relatively well preserved with aging, using MR image data from 109…

We investigated linguistic and visuospatial processing during pictorial reasoning in high-functioning autism (HFA), Asperger's syndrome (ASP), and age and IQ-matched typically developing participants (CTRL), using three conditions designed to differentially engage linguistic mediation or visuospatial processing (visuospatial, V; semantic, S;…

The development of a 20-item semantic differential assessment instrument for measuring student attitudes toward the subject of chemistry is described (Attitude toward the Subject of Chemistry Inventory-ASCI). Instrument subscales and survey items pertain to interest and utility, anxiety, intellectual accessibility, emotional satisfaction, and…

This paper explores some conceptual and descriptive parallels between vocal and non-vocal communication, paying particular attention to the physical phenomena and semiotic functions in both speech and gesture. The discussion focuses on the interplay between organic and performance components of speech and gestural behaviour. A central thesis of…

Analyzes key problems associated with representation of the intellectual content of digital objects. Presents a framework for analysis based on Peirce's notion of unlimited semiosis. This analysis is based on the assumption that every element in the subject indexing process could be regarded a sign. (AEF)

This paper analyzes two student papers, "Pygmalion" and "Waiting to Inhale," in terms of the type of thinking demonstrated in them. It examines the difference between higher order patterns of thinking evident in advanced or adult writers and patterns of thinking in young writers or students. The study reported in the paper…