The Internet is enabling greater access to spectral imaging publications, spectral graphs, and data than that was available a generation ago. The spectral imaging systems discussed in this issue of Cytometry work because reagent and hardware spectra are reproducible, reusable, and provide input to spectral unmixing and spectral components recognition algorithms. These spectra need to be readily...

When middle school students learn science content with graphs, the graphing and science knowledge may be mutually reinforcing: understanding the science content may help students interpret a related graph, and information from a graph may illustrate a scientific concept. We examine this relationship between graphing and science by studying how students learn from interactive computer models wit...

Effect size estimates are altered by many factors, including, and perhaps most importantly, the shapes of compared distributions. There have been many long time advocates of the necessity of graphing raw data to truly understand analysis. Though they were and remain correct, there is little evidence in the published literature in psychology that their recommendations have been followed. This pa...

This paper describes how a researcher developed task and four different data collection instruments provide evidence for the identification of various affordances of a technology-rich teaching and learning environment (TRTLE) that were perceived and/or enacted by Year 9 students in their solution of a linear function task utilising a graphing calculator. Each instrument proved valuable in the i...

This paper addresses the question of how teachers learn from experience during their pre-service course and early years of teaching. It outlines a theoretical framework that may help us better understand how teachers’ professional identities emerge in practice. The framework adapts Vygotsky’s Zone of Proximal Development, and Valsiner’s Zone of Free Movement and Zone of Promoted Action, to the ...