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331.
To empower students with skills such as information and technological literacy, global awareness and cultural competence, self-direction, and sound reasoning, teachers must master these skills themselves. This chapter examines how the Digital Age Literacy Initiative of the Metropolitan School District of Lawrence Township in Indianapolis, Indiana, which is funded by the Lilly Endowment, incorporated twenty-first century learning through a systemic approach involving teacher training and the use of data. The authors explain the district's content, process, and context goals toward accomplishing its mission of empowering students with the necessary twenty-first century skills to succeed in the digital age. The district places a strong emphasis on professional development for teachers. To support the necessary teacher learning and therefore sustain the work of the initiative, the district has adopted action research, self-assessment, and an online professional development network. To support teachers in implementing new strategies, master teachers serve as digital age literacy coaches. The chapter discusses the initiative's focus on evidence of progress. Through a partnership with the Metiri Group of California, the district has built a range of assessments including online inventories and twenty-first century skill rubrics. For example, the Mankato Survey collected teacher and student data around access, ability, and use of technology in the classroom in 2001 and then in 2004. This research showed significant gains in some technologies across all grade levels and consistent gains in nearly all technologies for middle and high school students. As it moves into the next phase of implementing the Digital Age Literacy Initiative, the district embraces the systemic shifts in school culture necessary to institutionalize twenty-first century learning. 相似文献
332.
Alicia A. Taylor Joyce S. Tsuji Margaret E. McArdle William J. Adams William L. Goodfellow Jr. 《Risk analysis》2023,43(2):211-218
The U.S. Environmental Protection Agency's (EPA) Integrated Risk Information System (IRIS) database, the authoritative source of U.S. risk assessment toxicity factors, currently lacks an oral reference dose (RfD) for copper. In the absence of such a value, various health-based reference values for copper are available for use in risk assessment. We summarize the scientific bases and differences in assumptions among key reference values for ingested copper to guide selection of appropriate values for risk assessment. A comprehensive review of the scientific literature best supports the oral RfD of 0.04 mg/kg body weight/day derived by EPA from their Drinking Water Action Level. This value is based on acute gastrointestinal effects but is further supported by broader analysis of copper deficiency and toxicity. 相似文献
333.
This paper reports the results of a study undertaken to evaluate the validity of requirements for admission to Florida State University's Graduate Program in Management offered by its School of Business in the Cape Kennedy Area of Florida. A multiple regression study was made using as independent variables students' undergraduate grade point average (UGPA), Graduate Record Examination aptitude test score (GRE), and age (AGE) at time of admission. The dependent variable was graduate grade point average (GGPA). The study revealed a significant positive correlation between GRE and GGPA. The correlation between AGE and GGPA was also significant but was positive for values of AGE up to approximately 29 and negative thereafter. UGPA was not even marginally significant. 相似文献