Secondary Students, Laptops and Game Design: Examining the Potential of Homemade PowerPoint Games in a Blended Learning Environment

The integration of technology into K-12 classrooms has long been hampered by the problem of scalability. Familiar software programs, such as MS PowerPoint, can be used as a tool for students to create educational games to deepen their understanding of content. In this article, the authors examine students in two secondary social studies classes that created homemade PowerPoint games as a way to review for their mid-term and final examinations. The authors compared student performance on these exams based upon the topics covered by their game design. While no significant differences in student outcomes were found, qualitative analyses indicate that students and the teacher reported that the activity enjoyable and wished to continue this project. The authors speculate the lack of statistical differences was due to the small sample size and plan to use the lessons from the first year as this research continues

PowerPoint Games in a Secondary Laptop Environment

There is no denying the success and popularity of WebQuests among teachers. For those interested in technology integration, this is a significant step in the right direction. Yet, WebQuests are instructivist examples of technology integration – they are web-enhanced forms of direct instruction. We consider constructing homemade PowerPoint games as a constructionist alternative to WebQuests. PowerPoint is nearly ubiquitous software and teachers already use existing games in their classrooms. The authors contend that a better use of class time for learning is to turn over the act of game design to the children themselves. In this project, students in social studies course delivered by a mid-western high school designed PowerPoint Games as a means to review for portions of two examinations

An examination of the effects of labor efficiency on the profitability of grass-based, seasonal-calving dairy farms

peer-reviewedThe seasonality of grass-based, seasonal-calving dairy systems results in disproportionately higher labor demands during the spring, when cows are calving, than in the remaining seasons. This study aimed to (1) examine the relationship between labor efficiency and profitability; (2) investigate strategies to reduce the hours worked per day by the farmer, family, and farm staff in the spring by having certain tasks outsourced; and (3) quantify the economic implications of those strategies. Data from an existing labor efficiency study on Irish dairy farms were used in conjunction with economic performance data from the farms. Tasks that required the highest level of farm labor per day in the spring were identified and hypothetical strategies to reduce the farm hours worked per day were examined. A stochastic budgetary simulation model was then used to examine the economic implications of employing these strategies and the effects of their use in conjunction with a proportionate increase in cow numbers that would leave the hours worked per day unchanged. The strategies were to use contractors to perform calf rearing, machinery work, or milking. Contracting out milking resulted in the greatest reduction in hours worked per day (5.6 h/d) followed by calf rearing (2.7 h/d) and machinery work (2 h/d). Reducing the hours worked per day by removing those tasks had slight (i.e., <5%) negative effects on profitability; however, maintaining the farm hours worked per day while utilizing the same strategies and increasing herd sizes resulted in profitable options. The most profitable scenario was for farms to increase herd size while contracting out milking

Continuing Change in a Virtual World: Training and Recruiting Instructors

The process of teacher identification, selection, initial training, and on-going professional development that has developed at the Illinois Virtual High School (IVHS) over the past seven years is described and discussed in this article. Validation was based upon existing practices and research. To provide background the creation and initial development of the IVHS is described. Some of the issues within the hiring process and professional development that the IVHS continues to struggle are examined including teacher certification and the changing nature of technology. The paper concludes with a recommendation that teacher education programs assist in addressing these challenges to support IVHS and other virtual schools

Thiopurine Methyltransferase Predicts the Extent of Cytotoxicty and DNA Damage in Astroglial Cells after Thioguanine Exposure

Thiopurine methyltransferase (Tpmt) is the primary enzyme responsible for deactivating thiopurine drugs. Thiopurine drugs (i.e., thioguanine [TG], mercaptopurine, azathioprine) are commonly used for the treatment of cancer, organ transplant, and autoimmune disorders. Chronic thiopurine therapy has been linked to the development of brain cancer (most commonly astrocytomas), and Tpmt status has been associated with this risk. Therefore, we investigated whether the level of Tpmt protein activity could predict TG-associated cytotoxicity and DNA damage in astrocytic cells. We found that TG induced cytotoxicity in a dose-dependent manner in Tpmt+/+, Tpmt+/− and Tpmt−/− primary mouse astrocytes and that a low Tpmt phenotype predicted significantly higher sensitivity to TG than did a high Tpmt phenotype. We also found that TG exposure induced significantly more DNA damage in the form of single strand breaks (SSBs) and double strand breaks (DSBs) in primary astrocytes with low Tpmt versus high Tpmt. More interestingly, we found that Tpmt+/− astrocytes had the highest degree of cytotoxicity and genotoxicity (i.e., IC50, SSBs and DSBs) after TG exposure. We then used human glioma cell lines as model astroglial cells to represent high (T98) and low (A172) Tpmt expressers and found that A172 had the highest degree of cytoxicity and SSBs after TG exposure. When we over-expressed Tpmt in the A172 cell line, we found that TG IC50 was significantly higher and SSB's were significantly lower as compared to mock transfected cells. This study shows that low Tpmt can lead to greater sensitivity to thiopurine therapy in astroglial cells. When Tpmt deactivation at the germ-line is considered, this study also suggests that heterozygosity may be subject to the greatest genotoxic effects of thiopurine therapy

The impact of work organisation on the work life of people on pasture-based dairy farms

The seasonal workload combined with increased dairy herd sizes and a declining workforce have created social sustainability challenges for pasture-based dairy farms. Effective work organisation can build productive capacity that may have a positive impact on this scenario. Our objective was to develop a framework to characterise and examine the effect of work organisation on the working situations of the people involved in a sample of 55 pasture-based dairy farms in Ireland. We conceptualised that effective work organisation on a dairy farm could be considered as a system that is efficient from a labour input perspective, resulting in a profitable farming system with outcomes of good operator well-being, health and safety, and quality of life. A literature review established efficiency &amp; productivity, flexibility and standardisation as our three characteristics of work organisation. Using data from an existing labour time-use study completed from the 1st February to 30th June 2019, we aimed to test the veracity of these work organisation characteristics in the Irish pasture-based dairy system. Two proxy indicators were selected to represent each of the three work organisation characteristics, and each of the 55 farms were categorised into quartiles based on their ranking for these six indicators (1 = most effective quartile to 4 = least effective quartile). The most and least effective quartiles of farms for work organisation showed similar levels of farm labour input and labour efficiency. Farmers in the most effective work organisation quartile were working 51.2 h/week from February to June compared with 70.0 h/week for farmers in the least effective quartile, which was attributed to later start times, earlier finish times, and more time at non-farm activity. Farms achieving effective work organisation had a labour-efficient system with relatively low farmer working hours. Extension of the work organisation concept to other farms could improve their labour situation and aid in alleviating some of the key quality of life challenges faced by dairy farmers

Exploring the relationship between gambling, debt and financial management in Britain

The issue of how and why gamblers end up in debt has received comparatively little attention in the literature. Data from the 2007 Adult Psychiatric Morbidity Survey (APMS) revealed that although problem gamblers were more likely than non-problem gamblers to have forms of financial debt, just under two-thirds of problem gamblers (62%) reported having no debt. Using a qualitative approach, this study aimed to explore the issue from the perspective of gamblers themselves through interviews with 27 purposively sampled gamblers drawn from participants who took part in the APMS and the British Gambling Prevalence Survey 2010. Analysis, using the Framework method, suggested the existence of four kinds of gamblers categorized by their approach to gambling spending and their approach to their general spending: ‘controlled gamblers’, ‘uncontrolled gamblers’, ‘uncontrolled spenders’ and ‘chaotic spenders’. Also proposed on the basis of these data is an ecological model which aims to capture the different levels of personal and environmental factors that influenced people's financial decisions, including cognitive factors, control and compulsion, normative spending, resource and financial management, and the credit environment. The implications for practice are also discussed

Sustaining global food systems with youth digital livestock production curricula interventions and adoption to professionally develop agents of change

Improving the sustainability of global food systems requires competent and impactful change agents who are tasked with disseminating knowledge to stakeholders in local communities. Agricultural Extension agents and agricultural educator, who provide mentorship and preparation of youth, are pivotal for the positive outcomes of youth livestock production programs. Digital professional development, as one intervention for both formal and nonformal educators, can be a more effective use of an educator’s time. This study examined the needs and competency levels of agents and teachers related to their capacity for training youth livestock exhibitors. Through an online course, participants completed a pre-posttest within an interactive module. The data revealed that agents and agricultural teachers were proficient in Texas, USA, youth livestock production programs. This study found that the majority of both groups scored over 90% on the curricula’s assessment. There was a significant difference; agricultural education teachers reported higher mean scores than Extension agents on the Effective Teaching assessment. Both groups reported agreement with the Time to Complete, Tool Navigation, and Effective Teaching assessments. The data indicated that participants should additionally receive training materials on ethics policy and livestock validation. Livestock production digital professional development for nonformal agents of change is essential for sustaining global food chains