Integrating ICT through multimodal discourse in a primary classroom

Most children talk to their parents about what they learned at school. Parents hear about books read, pictures drawn, stories written and games played. But how often do parents hear of children using ICT to make multimedia stories with a mathematical focus? In this paper the term “multimodality” will be used to describe such activities. Kress (2004) states that multimodality “deals with all the means we have for making meanings – the modes of representation – and considers their specific way of configuring the world.”Although digital technology is now available in most Australian schools, classroom use of such technology is not always creative and meaningful for learners. Recent state and federal government initiatives provide teachers with opportunities to integrate various digital technology applications into their classroom practice. In late 2011 a small research project was conducted with a class of Grade 4 students from an outer suburban Melbourne government school. As part of the project students planned and produced a multimedia artefact that explained some aspect of mathematics they had learned during the year.This paper outlines the planning and production of the multimedia artefacts created by the students, together with a brief discussion of some impediments to teacher use of technology that were identified by teachers at the school. Other issues considered include assessment and reporting in multiple subject areas based on one piece of student work, and the balancing of the relative importance of subject areas in integrated projects and tasks. The authors argue for the development and deliberate inclusion of integrated multimodal activities throughout the primary school curriculum

Variability in fluvially‐dominated, fine‐grained, shallow‐water deltas

I gratefully acknowledge a previous honorary position at the University of Aberdeen, and thank John Howell and Martin Wells for comments on an early version of the manuscript. I am grateful too to journal reviewers, Brian Willis and two anonymous reviewers, for their detailed comments and suggestions, and appreciate the patient guidance of editors Piret Plink-Björklund and Jeff Peakall.Peer reviewedPublisher PD

Periods of EO and FV Comae Berenices and the Functional Forms of Their O-C Diagrams

New elements are given for the RRab Lyrae variables EO Comae Berenices and FV Comae Berenices. The statistical significance of higher order terms in a polynomial least squares fit is discussed

Organometallic modeling of the hydrodesulfurization (HDS) process: rhenium carbonyl-promoted C-S bond cleavage and hydrogenation of thiophenes and benzothiophenes

Hydrodesulfurization (HDS), the commercial process for the removal of sulfur from organosulfur compounds that are present in petroleum feedstocks, is important for environmental and industrial reasons. Sulfur contaminants present in petroleum can produce toxic sulfur oxides once the petroleum is combusted which is an environmental concern. Also, sulfur poisons precious metal based reforming catalysts which is a costly expense for the refineries. Commercial HDS is achieved on a large-scale by treating petroleum at high temperatures (200--300°C) and pressures (\u3e150 atm) of H 2 in the presence of transition metal-based catalysts (CO/MoS2 or Ni/WS2 supported on Al2O3). Among the organosulfur compounds that are present in fossil fuels are thiols, sulfides, disulfides and thiophenes. However, it is the thiophenic molecules that are the hardest to desulfurize due to the aromatic stability of the rings;Important steps in the HDS process are the adsorption and C-S bond cleavage of thiophenes and benzothiophenes at heterogeneous catalyst metal centers. Organometallic modeling of the HDS process as it applies to thiophenes and benzothiophenes is one approach studying the commercial system. This dissertation consists of a review on transition metal clusters that have been used as models for the HDS of thiophenes. Subsequent chapters focus on RC2(CO) 10-promoted S-binding, ring opening and hydrogenation of thiophenes and benzothiophenes using different methods;The complex Re2(CO)10 reacts both photochemically with thiophenes and benzothiophenes to produce the S-bound thiophene (T*) complexes, Re2(CO)9(eta1(S)-T*) and ring cleaved thiophene complexes Re2(CO)7(mu-T*). The S-bound complexes were, in many cases, converted to Re2(CO) 7(mu-T*) complexes by irradiation with UV-light. The ring opened complexes Re2(CO)7(mu-T*) were reacted further with phosphines and H2 to produce novel ring-opened and partially hydrogenated Re-thiophene complexes

High-Frequency Fluctuations of a Modulated, Helical Electron Beam

The high-frequency electromagnetic field generated by a density-modulated, helical electron beam propagating in a magnetized plasma is calculated. The magnetic fluctuations are found to exhibit spatially localized ~evanescent! resonances at harmonics of the electron-cyclotron frequency, whose width is determined by the pitch angle of the beam, and whose existence is a consequence of the helical geometry. In addition, electrostatic modes are radiated near the hybrid frequencies, and electromagnetic modes are radiated above the upper-hybrid frequency. The predicted frequency spectrum and mode structure in configuration space are in good agreement with experimental observations of discrete emission lines at the electron-cyclotron harmonics

Program for a Convention Center

The following program will verbally resolve the problem assigned: A Convention Center with a seating capacity of 10,000 people, meeting rooms, and exhibition space of approximately 100,000 square feet to be located in context with the comprehensive plan for Core Redevelopment by the Albuquerque-Downtown staff

The Design and Impact of Unaccounted for Gas Reduction Policies For Natural Gas Distribution Network In Ireland And The United Kingdom

Unaccounted for gas (UAG) is the challenge faced by the natural gas industry which has financial, environmental as well as safety implications. The regulators have the authority to control the extent of the financial costs that can be passed on to the end-users by the transporters and distributors to recover the cost of UAG. There has been action taken by the regulators in Ireland and the United Kingdom to reduce the amount of UAG, which is beneficial to end-users as well as transporters and distributors. This paper discusses the design of the UAG calculation methodology of the distribution network. It highlights the approach taken by the regulators to reduce UAG along with the observed UAG trends in the distribution network

Ion Bernstein Waves Driven by Two Transverse Flow Layers

The interaction between two narrow layers of E3B flow is investigated, along with their stability properties. The mode frequencies, growth rates, and eigenfunctions are calculated. It is found that the instability due to a single layer is robust to the inclusion of a second layer. Specifically, when the separation between the layers is on the order of the ion-cyclotron radius, there is strong coupling between the two layers and the second layer is destabilizing. In addition, when the flow velocities are in opposite directions a wide variety of modes is possible, including near-zero-frequency modes, resulting in broadband structure in both the frequency spectrum and the wave number spectrum. These results may have implications for the understanding of the auroral ionosphere, where such spatial structure in the transverse electric field is often observed

Tactile Aids for Teaching Statistics to the Visually Impaired

This case study explored the use of haptic tools to teach concepts in introductory statistics to a blind student. Statistics education typically relies heavily on the visual modality, which limits accessibility for the visually impaired. Our study made use of tactile aids such as LEGO building blocks, push pin diagrams, and 3D printed models to demonstrate typical statistical concepts such as histograms, normal distributions, skewed distributions, central tendency, and scatterplots. We argue that such models are beneficial for elucidating course material which is typically taught visually. For example, 3D printed models were able to highlight all the same components of the standard normal distribution as visual drawings do, making a complex topic easily understandable. The aim of this project is to establish an easily-accessible, replicable model for utilizing these tools and methods to teach statistical concepts. This work has implications for teaching statistical content to those with visual impairment, and may also serve as a valuable supplement for any student of statistics