title: Affordances of spreadsheets in mathematical investigation: Potentialities for learning

authors: Calder, Nigel Stuart

subjects: school mathematics

abstract: This article, is concerned with the ways learning is shaped when mathematics problems are investigated in spreadsheet environments. It considers how the opportunities and constraints the digital media affords influenced the decisions the students made, and the direction of their enquiry pathway. How might the leraning trajectory unfold, and the learning process and mathematical understanding emerge? Will the spreadsheet, as the pedagogical medium, evoke learning in a distinctive manner? The article reports on an aspect of an ongoing study involving students as they engage mathematical investigative tasks through digital media, the spreadsheet in particular. In considers the affordances of this learning environment for primary-aged students.

text: Affordances of spreadsheets in mathematical investigation: Potentialities for learning This article, is concerned with the ways learning is shaped when mathematics problems are investigated in spreadsheet environments. It considers how the opportunities and constraints the digital media affords influenced the decisions the students made, and the direction of their enquiry pathway. How might the leraning trajectory unfold, and the learning process and mathematical understanding emerge? Will the spreadsheet, as the pedagogical medium, evoke learning in a distinctive manner? The article reports on an aspect of an ongoing study involving students as they engage mathematical investigative tasks through digital media, the spreadsheet in particular. In considers the affordances of this learning environment for primary-aged students.

year: 2010

title: A thesis on green finance

authors: Xu, Danyang

subjects: Green finance

abstract: In recent years, green finance has received considerable attention as a key tool for addressing climate change and achieving global sustainable development. It plays a critical role in driving the global transition to a green economy, achieving carbon neutrality targets and advancing environmental governance. This thesis provides an in-depth exploration of the dynamic connectedness of green financial markets and their complex interactions with various types of risks, aiming to comprehensively understand their characteristics and behaviors under different market conditions. First, using advanced econometric techniques such as the Time-Varying Parameter Vector Autoregressive (TVP-VAR) model and wavelet analysis, the study reveals the relationships between green financial markets and key driving risks, including financial and climate risks, in the time and frequency domain. Second, the thesis investigates the connectedness mechanisms between green bond markets in the United States and China and other financial markets. The analyses also reveal the intrinsic nature of the two major green bond markets. Finally, the thesis examines the dynamic relationships between key environmental, social, and governance (ESG) markets and other sources of uncertainty. 
The findings reveal that financial risks are the primary drivers of connectedness in green financial markets, with significant impacts on long-term return connectedness, whereas climate risks, particularly physical climate risks, have pronounced short-term effects on volatility connectedness. Furthermore, this thesis highlights the different roles of US and Chinese green bonds in responding to financial crises and geopolitical conflicts (e.g., the COVID-19 pandemic and the Russia-Ukraine conflict). Green bonds in the US have demonstrated stable hedging capabilities, while Chinese green bonds have shown strong market resilience, driven by economic transition and policy support. The analysis of ESG investment markets shows that European markets dominate the global green financial system, characterized by high returns and strong risk mitigation capabilities, while ESG assets in emerging markets are more constrained by regional economic and policy environments. In addition, this thesis explores the potential of optimal portfolio strategies of green financial assets in risk diversification and asset allocation, with green bonds and ESG assets being particularly important in times of crisis. 
This work not only contributes to the theoretical understanding of the dynamic characteristics of green financial markets, but also provides practical insights for policymakers in designing effective green financial policies and for investors in optimizing asset allocation. By revealing the dynamic linkages of green financial markets, this study provides crucial empirical evidence and decision-making support for the sustainable development of global green financial markets. The findings of the thesis lay a solid foundation for future research on green finance and suggest novel solutions to address global climate change challenges and promote sustainable economic development.

text: A thesis on green finance In recent years, green finance has received considerable attention as a key tool for addressing climate change and achieving global sustainable development. It plays a critical role in driving the global transition to a green economy, achieving carbon neutrality targets and advancing environmental governance. This thesis provides an in-depth exploration of the dynamic connectedness of green financial markets and their complex interactions with various types of risks, aiming to comprehensively understand their characteristics and behaviors under different market conditions. First, using advanced econometric techniques such as the Time-Varying Parameter Vector Autoregressive (TVP-VAR) model and wavelet analysis, the study reveals the relationships between green financial markets and key driving risks, including financial and climate risks, in the time and frequency domain. Second, the thesis investigates the connectedness mechanisms between green bond markets in the United States and China and other financial markets. The analyses also reveal the intrinsic nature of the two major green bond markets. Finally, the thesis examines the dynamic relationships between key environmental, social, and governance (ESG) markets and other sources of uncertainty. 
The findings reveal that financial risks are the primary drivers of connectedness in green financial markets, with significant impacts on long-term return connectedness, whereas climate risks, particularly physical climate risks, have pronounced short-term effects on volatility connectedness. Furthermore, this thesis highlights the different roles of US and Chinese green bonds in responding to financial crises and geopolitical conflicts (e.g., the COVID-19 pandemic and the Russia-Ukraine conflict). Green bonds in the US have demonstrated stable hedging capabilities, while Chinese green bonds have shown strong market resilience, driven by economic transition and policy support. The analysis of ESG investment markets shows that European markets dominate the global green financial system, characterized by high returns and strong risk mitigation capabilities, while ESG assets in emerging markets are more constrained by regional economic and policy environments. In addition, this thesis explores the potential of optimal portfolio strategies of green financial assets in risk diversification and asset allocation, with green bonds and ESG assets being particularly important in times of crisis. 
This work not only contributes to the theoretical understanding of the dynamic characteristics of green financial markets, but also provides practical insights for policymakers in designing effective green financial policies and for investors in optimizing asset allocation. By revealing the dynamic linkages of green financial markets, this study provides crucial empirical evidence and decision-making support for the sustainable development of global green financial markets. The findings of the thesis lay a solid foundation for future research on green finance and suggest novel solutions to address global climate change challenges and promote sustainable economic development.

year: 2025-06-09

title: Ani Jane Lipsey and Alexander Watson Edwards

authors: Hart, Philip

abstract: Ani Lipsey, the eldest daughter of George and Ema, was well educated. Her Scottish husband, who settled in Te Aroha in the 1880s, had been apprenticed as a draper, an occupation he followed in both Australia and then New Zealand. In addition, for a couple of decades he owned dairy farms in the Te Aroha district. He was a successful merchant with a steadily expanding and profitable business. 
Ani received a good income for a while from goldfields revenue, and put the land she inherited to profitable use. In the early twentieth century she convinced officials that she should be permitted to sell land within the township because the proceeds went to assist her husband’s business and because, over time, the government had decided to acquire all the Maori interests in Te Aroha. To assist in selling her land, in 1911 she had it declared European land, she herself being regarded as ‘practically a European’.
Both were active in the social life of the township, Ani being a competent pianist, and participated in sporting activities. Both owned racehorses, and Edwards assisted in organizing many race meetings. As part of his efforts to assist the community, for a while he was a member of the borough council. Both were popular, and were fondly remembered.

text: Ani Jane Lipsey and Alexander Watson Edwards Ani Lipsey, the eldest daughter of George and Ema, was well educated. Her Scottish husband, who settled in Te Aroha in the 1880s, had been apprenticed as a draper, an occupation he followed in both Australia and then New Zealand. In addition, for a couple of decades he owned dairy farms in the Te Aroha district. He was a successful merchant with a steadily expanding and profitable business. 
Ani received a good income for a while from goldfields revenue, and put the land she inherited to profitable use. In the early twentieth century she convinced officials that she should be permitted to sell land within the township because the proceeds went to assist her husband’s business and because, over time, the government had decided to acquire all the Maori interests in Te Aroha. To assist in selling her land, in 1911 she had it declared European land, she herself being regarded as ‘practically a European’.
Both were active in the social life of the township, Ani being a competent pianist, and participated in sporting activities. Both owned racehorses, and Edwards assisted in organizing many race meetings. As part of his efforts to assist the community, for a while he was a member of the borough council. Both were popular, and were fondly remembered.

year: 2016