Posts Tagged ‘digital literacy edad’

Data Lake

What is a Data Lake? A Super-Simple Explanation For Anyone

September 6, 2018 Bernard Marr

https://www.linkedin.com/pulse/what-data-lake-super-simple-explanation-anyone-bernard-marr/

James Dixon, the CTO of Pentaho is credited with naming the concept of a data lake. He uses the following analogy:

“If you think of a datamart as a store of bottled water – cleansed and packaged and structured for easy consumption – the data lake is a large body of water in a more natural state. The contents of the data lake stream in from a source to fill the lake, and various users of the lake can come to examine, dive in, or take samples.”

A data lake holds data in an unstructured way and there is no hierarchy or organization among the individual pieces of data. It holds data in its rawest form—it’s not processed or analyzed. Additionally, a data lakes accepts and retains all data from all data sources, supports all data types and schemas (the way the data is stored in a database) are applied only when the data is ready to be used.

What is a data warehouse?

A data warehouse stores data in an organized manner with everything archived and ordered in a defined way. When a data warehouse is developed, a significant amount of effort occurs during the initial stages to analyze data sources and understand business processes.

Data

Data lakes retain all data—structured, semi-structured and unstructured/raw data. It’s possible that some of the data in a data lake will never be used. Data lakes keep all data as well. A data warehouse only includes data that is processed (structured) and only the data that is necessary to use for reporting or to answer specific business questions.

Agility

Since a data lake lacks structure, it’s relatively easy to make changes to models and queries.

Users

Data scientists are typically the ones who access the data in data lakes because they have the skill-set to do deep analysis.

Security

Since data warehouses are more mature than data lakes, the security for data warehouses is also more mature.

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more on big data in this IMS blog
https://blog.stcloudstate.edu/ims?s=big+data

ISTE standards ed leaders

ISTE Releases New Standards for Education Leaders

By Team ISTE6/24/2018

https://www.iste.org/explore/articleDetail?articleid=2227&category=Press-Releases&article=
The International Society for Technology in Education (ISTE) today released new standards for education leaders that highlight key areas of impact.
ISTE received input and feedback on the Education Leaders Standards from over 1,300 educators and leaders from all 50 states and 36 countries.

The characteristics of effective leaders outlined in the ISTE Standards for Education Leaders are:

  1. Equity and Citizenship Advocate: Leaders use technology to increase equity, inclusion and digital citizenship practices.
  2. Visionary Planner: Leaders engage others in establishing a vision, strategic plan and ongoing evaluation cycle for transforming learning with technology.
  3. Empowering Leader: Leaders create a culture where teachers and learners are empowered to use technology in innovative ways to enrich teaching and learning.
  4. System Designer: Leaders build teams and systems to implement, sustain and continually improve the use of technology to support learning.
  5. Connected Learner: Leaders model and promote continuous professional learning for themselves and others.

The ISTE Standards are a framework for rethinking education and empowering learners. ISTE began a cycle of updating the widely used standards when it released the new ISTE Standards for Students (in 2016), followed by the ISTE Standards for Educators (in 2017), culminating with the ISTE Standards for Education Leaders this year.

“As administrators, our responsibilities cover many areas, including technology, which has become a necessary component of living and work,” said Curt Mould, director of digital media, innovation and strategy at Sun Prairie Area School District in Wisconsin. “The world our students are walking into is increasingly global and diverse – and technology is often the leverage point needed to bring global and diverse ideas together. In this regard, technology can be a game-changer in our schools. We need a new plan to help operationalize our work for the long-term benefit of our students.”

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more on ISTE standards in this IMS blog
https://blog.stcloudstate.edu/ims?s=iste+standards

more on technology and ed leaders in this IMS blog
https://blog.stcloudstate.edu/ims?s=technology+ed+leaders

Overselling of Education Technology

The Overselling of Education Technology

By Alfie Kohn     Mar 16, 2016

https://www.edsurge.com/news/2016-03-16-the-overselling-of-education-technology

Basically, my response to ed tech is “It depends.” And one key consideration on which it depends is the reason given for supporting it.

ads in education periodicals, booths at conferences, and advocacy organizations are selling not only specific kinds of software but the whole idea that ed tech is de rigueur for any school that doesn’t want to risk being tagged as “twentieth century.”

Other people, particularly politicians, defend technology on the grounds that it will keep our students “competitive in the global economy.” This catch-all justification has been invoked to support other dubious policies, including highly prescriptive, one-size-fits-all national curriculum standards. It’s based on two premises: that decisions about children’s learning should be driven by economic considerations, and that people in other countries should be seen primarily as rivals to be defeated.

But the rationale that I find most disturbing—despite, or perhaps because of, the fact that it’s rarely made explicit—is the idea that technology will increase our efficiency…at teaching the same way that children have been taught for a very long time.

a deeper question: “What kinds of learning should be taking place in those schools?” If we favor an approach by which students actively construct meaning, an interactive process that involves a deep understanding of ideas and emerges from the interests and questions of the learners themselves, well, then we’d be open to the kinds of technology that truly support this kind of inquiry. Show me something that helps kids create, design, produce, construct—and I’m on board. Show me something that helps them make things collaboratively (rather than just on their own), and I’m even more interested—although it’s important to keep in mind that meaningful learning never requires technology, so even here we should object whenever we’re told that software (or a device with a screen) is essential.

more worrisome are the variants of ed tech that deal with grades and tests, making them even more destructive than they already are: putting grades online (thereby increasing their salience and their damaging effects), using computers to administer tests and score essays, and setting up “embedded” assessment that’s marketed as “competency-based.”

we shouldn’t confuse personalized learning with personal learning. The first involves adjusting the difficulty level of prefabricated skills-based exercises based on students’ test scores, and it requires the purchase of software. The second involves working with each student to create projects of intellectual discovery that reflect his or her unique needs and interests, and it requires the presence of a caring teacher who knows each child well.

a recent review found that studies of tech-based personalized instruction “show mixed results ranging from modest impacts to no impact” – despite the fact that it’s remarkably expensive. In fact, ed tech of various kinds has made headlines lately for reasons that can’t be welcome to its proponents. According to an article in Education Week, “a host of national and regional surveys suggest that teachers are far more likely to use tech to make their own jobs easier and to supplement traditional instructional strategies than to put students in control of their own learning.” Last fall, meanwhile, OECD reportednegative outcomes when students spent a lot of time using computers, while Stanford University’s Center for Research on Education Outcomes

Ed tech is increasingly making its way even into classrooms for young children. And the federal government is pushing this stuff unreservedly: Check out the U.S. Office of Education Technology’s 2016 plan recommending greater use of “embedded” assessment, which “includes ongoing gathering and sharing of data,” plus, in a development that seems inevitable in retrospect, a tech-based program to foster a “growth mindset” in children. There’s much more in that plan, too—virtually all of it, as blogger Emily Talmage points out, uncannily aligned with the wish list of the Digital Learning Council, a group consisting largely of conservative advocacy groups and foundations, and corporations with a financial interest in promoting ed tech.

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more on technology literacy in this IMS blog
https://blog.stcloudstate.edu/ims?s=technology+literacy

LMS on customer experience

The Best Learning Management Systems based on Customer Experience

This Top 20 LMS list has been created using a holistic approach and is based on input from actual LMS users.
The order of appearance depends on Customer Satisfaction (CSAT Score), Customer Effort (CEF Score) & Customer Expectation (CEX Score).

https://elearningindustry.com/directory/software-categories/learning-management-systems/best/customer-experience

  1. https://www.looop.co/
  2. https://www.skillcast.com/
  3. https://www.ispringsolutions.com/ispring-learn
  4. https://www.knolyx.com/
  5. https://ecoach.com/
  6. https://www.nimble-elearning.com/
  7. https://learnamp.com/features
  8. https://www.skolera.com/en/Default.aspx
  9. https://www.neolms.com/
  10. https://www.sofialms.com/
  11. https://www.crossknowledge.com/
  12. https://claned.com/
  13. https://www.talentlms.com/index/aff:bing
  14. https://www.totaralms.com/
  15. https://chamilo.org/chamilo-lms/
  16. https://open.edx.org/
  17. https://moodle.org/
  18. https://www.litmos.com/
  19. https://captivateprime.adobe.com/acapindex.html
  20. https://www.docebo.com/

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more on LMS in this IMS blog
https://blog.stcloudstate.edu/ims?s=lms

digital self harm

When Teens Cyberbully Themselves

April 21, 2018 JULI FRAGA https://www.npr.org/sections/health-shots/2018/04/21/604073315/when-teens-cyberbully-themselves

Recent research and clinical psychologists now suggest that some adolescents are engaging in a newer form of self-aggression — digital self-harm. They’re anonymously posting mean and derogatory comments about themselves on social media.

According to a survey published late last year in the Journal of Adolescent Health, teens are bullying themselves online as a way to manage feelings of sadness and self-hatred and to gain attention from their friends.

“We were alarmed to learn that 6 percent of the youth who participated in our study engaged in some form of digital self-harm,” says Sameer Hinduja, co-author of the study and a professor of criminology at Florida Atlantic University. He is also the co-director of the Cyberbullying Research Center.

“Because teens’ online and offline worlds overlap, digital self-harm is a concern for some youth, making online self-harm an emerging area of research,” says, Susan Swearer, a professor of psychology at the University of Nebraska, Lincoln

Because the advent of social media has changed the way many teens form and experience relationships, normal adolescent feelings of insecurity, anxiety and loneliness can become magnified as they scroll through their peers’ social media reels. Hinduja says some teens cope with that distress by turning their angst on themselves online.

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more on cyberbullying in this IMS blog
https://blog.stcloudstate.edu/ims?s=cyberbullying

more on digital citizenship in this IMS blog
https://blog.stcloudstate.edu/ims?s=digital+citizenship

edtech implementation fails

5 All-Too-Common Ways Edtech Implementations Fail

By Chris Liang-Vergara and Kerry Gallagher (Columnist)     Apr 6, 2017

https://www.edsurge.com/news/2017-04-06-5-all-too-common-ways-edtech-implementations-fail

On the surface, adopting technology to support teacher needs or student challenges isn’t terribly complex: define the problem you’re trying to solve, identify the right tools for the job, and implement the tools effectively and with fidelity.

challenges. End users are too often removed from the decision-making process during procurement. Educators argue that too many products don’t actually meet the needs of teachers or students. Still others worry that it is too easy to implement new and popular technology without considering whether it is research-based and effective.

Only 33 percent of parents surveyed by the Learning Assembly said their child’s school did an excellent job using technology to tailor instruction.

  • Understanding Purpose

Technology is just a tool, not a means in and of itself. Any school or teacher that sets out to use technology for its sake alone, and not in the service of personalizing learning or addressing specific needs, is on a mission to fail.

  • Insufficient Modeling of Best Practices

A survey from Samsung found that 37 percent of teachers say they would love to use technology but don’t know how, and 76 percent say they would like a professional development day dedicated to technology.

ideos that focus on scaling and modeling best practices (produced by places like the Teaching Channel and The Learning Accelerator) can help teachers and schools do this.

  • Bad First Impressions

Teachers face initiative fatigue: They are constantly being asked to implement new programs, integrate new technologies, and add on layers of responsibility. In one Wisconsin district, nearly half of teachers felt ongoing district initiatives were a “significant area of concern.”

Forward-thinking schools take the time to learn from the challenges of other schools, and recruit a coalition of the willing.

  • Real-World Usability Challenges

Relying on multiple devices (remote, clicker, iPad, computer mouse) to launch or navigate technology can be difficult. Additionally, teachers may start to use a tool, only to realize it is not flexible enough to meet their original needs, fit into the constraints of their particular school or classroom, or allow them to integrate their own content or supplemental resources.

  • The Right Data to Track Progress

Lack of useful data, problem definition, weak teacher buy-in, first impressions, and usability challenges all have the potential to torpedo smart technology products.

 

ed leadership and edtech

Edtech playground: Helping teachers choose better tools

By Nicole Krueger Leadership

https://www.iste.org/explore/articleDetail?articleid=2177

A virtual reality headset can take students on an immersive journey to another world. But no matter how cool it is, if that $3,000 piece of equipment enters a classroom and doesn’t provide any real instructional value, it can quickly become a very expensive paperweight.

Most schools don’t do edtech procurement really well yet. Sometimes we buy products that end up in closets because they don’t fit the instructional needs of students, and we end up not being good stewards of taxpayer dollars.

Located in the district’s central office, where hundreds of teachers and staff members stop by each week for professional development, the playground offers a creative space that encourages teachers to explore new tools that have been vetted and approved by the district’s tech department.

In the United States, K-12 schools spend more than $13 billion a year on edtech — often without any idea whether it will make a difference in learning outcomes.

 

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More on ISTE in this IMS blog
https://blog.stcloudstate.edu/ims?s=iste

more on digital literacy for ed leaders in this IMS blog
https://blog.stcloudstate.edu/ims?s=digital+literacy+EDAD

automated Twitter bots

twitter bots

To identify bots, the Center used a tool known as “Botometer,” developed by researchers at the University of Southern California and Indiana University.

Previous studies have documented the nature and sources of tweets regarding immigration news, the ways in which news is shared via social media in a polarized Congress, the degree to which science information on social media is shared and trusted, the role of social media in the broader context of online harassment, how key social issues like race relations play out on these platforms, and the patterns of how different groups arrange themselves on Twitter.

It is important to note that bot accounts do not always clearly identify themselves as such in their profiles, and any bot classification system inevitably carries some risk of error. The Botometer system has been documented and validated in an array of academic publications, and researchers from the Center conducted a number of independent validation measures of its results.8

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more on fake news in this IMS blog
https://blog.stcloudstate.edu/ims?s=fake+news

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