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Social and Behavioral Sciences Commons

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Full-Text Articles in Social and Behavioral Sciences

Building Conceptual Knowledge Of Fraction Operations Among Pre-Service Teachers: Effect Of A Representation-Based Teaching Approach Within A Teacher Education Program, Elise J. Thurtell, Patricia A. Forrester, Mohan Chinnappan Jan 2019

Building Conceptual Knowledge Of Fraction Operations Among Pre-Service Teachers: Effect Of A Representation-Based Teaching Approach Within A Teacher Education Program, Elise J. Thurtell, Patricia A. Forrester, Mohan Chinnappan

Faculty of Social Sciences - Papers (Archive)

A deep understanding of fraction concepts and operations is necessary if pre-service teachers (PSTs) are to present the concepts in multiple forms to learners. Such an understanding needs to be grounded in rich conceptual knowledge. In the present study, we explore the development of this understanding by supporting a cohort of 103 PSTs, who had previously demonstrated poor conceptual understanding of fraction concepts and operations, with a Representational Reasoning in Teaching and Learning (RRTL) approach aimed at strengthening their conceptual knowledge. A comparison of pre- and post-test results indicated that participants showed a significant improvement in shifting the balance of …


A Method Of Uncertainty Analysis For Whole-Life Embodied Carbon Emissions (Co2-E) Of Building Materials Of A Net-Zero Energy Building In Australia, Mehdi Robati, Daniel J. Daly, Georgios Kokogiannakis Jan 2019

A Method Of Uncertainty Analysis For Whole-Life Embodied Carbon Emissions (Co2-E) Of Building Materials Of A Net-Zero Energy Building In Australia, Mehdi Robati, Daniel J. Daly, Georgios Kokogiannakis

Faculty of Engineering and Information Sciences - Papers: Part B

The construction of new buildings requires the use of a substantial amount of materials, which have an associated embodied energy for manufacturing, transport, construction and end-of-life disposal. A number of inventories have been developed to collate the typical embodied energy or carbon emissions associated with different building materials and activities, and these can be used to quantify the environmental impacts of different construction methods. However, uncertainty exists in the estimation of embodied CO2-e emissions and other environmental impact results, due to i) inconsistencies in typical embodied carbon emissions values in inventories; ii) errors in estimations of material quantities; iii) assumptions …