1. Portfolio assessment is not new to education.
Digital portfolios came into prominence in the 1990s, around the time when computers became commonplace in classrooms. David Niguidula, a pioneer in this alternative form of assessment, coined the term “digital student portfolios.” He defines them as “an online collection of student work for a particular purpose and audience.” Digital portfolios cut the distance between student thinking and evidence of learning. There is no longer a need to represent understanding through a score or a grade.
2. . The best digital portfolios are process oriented.
A myth in education is that we should only showcase student’s best artifacts of learning. We might think of an artist’s body of work when considering digital portfolios as an alternative assessment.
3. It’s not a digital portfolio unless students are in charge.
4. Digital student portfolios are about more than just assessment.
The best digital portfolio processes do more than serve as an evaluation tool. They help the student develop a stronger sense of themselves as a learner and see their growth over time, such as through a series of drafts posted toward a final project and presentation.
The relationships between jobs, locality, families, housing, work and government policy, tax processes, crime, psychology, environment, access to education, and urban planning interact and converge in what is known as a Complex Adaptive System (CAS).
definition: Complexity can be understood as a theory of change and adaptation that details how change occurs within systems as well as the principles and mindsets needed to flourish in turbulent environments
he complexification of higher education is an intentional goal of engaging with complexity rather than attempting to reduce it to its constituent parts. Effective vision generation, planning, and goal achievement in the modern uncertain economic-social-technical environment benefits from embracing complexity and the utilization of strategies and actions that reflect a CAS.
ive principles of complexity science are of particular relevance to the higher education system. These attributes—networks, emergence, self-organization and social coordination, feedback sensitivity, and agility—are sufficient to provide higher education leaders with an entry into complexity science as a means of observing, understanding, and interacting with change.
One of the issues dividing the two main parliamentary blocs is whether there should be a cap on profit margins for publicly funded private schools.
The Swedish school system has received considerable internationalattention in recent years due to alarming test scores in the OECD’s international PISA study
Segregation is one of the most serious social problems facing Sweden and many other wealthy nations.
A recent report (the English title would be “A Nation Divided – School Choice and Segregation in Sweden”) that I have co-authored for the Stockholm based think tank Arena Idé shows that well-educated and Swedish-born families increasingly opt out of schools where the children have parents with lower educational attainments and an immigrant background. We also show that this “white flight” in Swedish municipalities throughout the country is increased by school choice and other reforms introduced in the early 1990s, whereby publicly financed private schools are allowed to compete with municipal schools for school vouchers allotted to each individual student.
The results in our study should be viewed in light of two recent reports: one from the OECDand another from UNICEF, both highlighting the inequality in the Swedish school system.
The results make it painfully clear that the Swedish school system effectively works against the very idea that schools should level the playing field for students from all backgrounds and give every child equal opportunity. Even after the rise of right-wing populism in Sweden, our established political parties have proven themselves unable, or unwilling, to rein in the highly unregulated Swedish school market.
Why is it so hard to figure out how many special education teachers are employed in each state? Because the employment figures that states submit to the federal government are sometimes wildly wrong. https://t.co/4eA9z2MNZu#specedpic.twitter.com/tKXhYCShN6
Emerging Technologies for Lifelong Learning: Intro to #EmTechMOOC and EmTechWIKI from SUNY
“… open-access resource… to identify the value and implications of using established and emerging technology tools for personal and professional growth…strategies to … keep pace with technology change.
“… #EmTechMOOC, – Coursera Massive Open Online Course
“…EmTechWIKI …socially-curated discovery engine to discover tools, tutorials, and resources. The WIKI can be used as a stand-alone resource, or it can be used together with #EmTechMOOC. Anyone is welcome to add or edit WIKI resources.”
At democracy’s heart lies a set of paradoxes: a delicate interplay of identity and anonymity, secrecy and transparency. To be sure you are eligible to vote and that you do so only once, the authorities need to know who you are. But when it comes time for you to mark a ballot, the government must guarantee your privacy and anonymity. After the fact, it also needs to provide some means for a third party to audit the election, while also preventing you from obtaining definitive proof of your choice, which could lead to vote selling or coercion.
Building a system that accomplishes all this at once — and does so securely — is challenging enough in the physical world. It’s even harder online, as the recent revelation that Russian intelligence operatives compromised voting systems in multiple states makes clear.
In the decade since the elusive Satoshi Nakamoto published an infamous white paper outlining the idea behind bitcoin, a “peer-to-peer electronic cash system” based on a mathematical “consensus mechanism,” more than 1,500 new cryptocurrencies have come into being.
definition: Nathan Heller in the New Yorker, in which he compares the blockchain to a scarf knit with a single ball of yarn. “It’s impossible to remove part of the fabric, or to substitute a swatch, without leaving some trace,” Heller wrote. Typically, blockchains are created by a set of stakeholders working to achieve consensus at every step, so it might be even more apt to picture a knitting collective creating that single scarf together, moving forward only when a majority agrees that a given knot is acceptable.
Unlike bitcoin, a public blockchain powered by thousands of miners around the world, most voting systems, including Votem’s, employ what’s known as a “permissioned ledger,” in which a handful of approved groups (political parties, election observers, government entities) would be allowed to validate the transactions.
there’s the issue of targeted denial-of-service (DoS) attacks, in which a hacker directs so much traffic at a server that it’s overwhelmed and ceases to function.
Although a distributed ledger itself would likely withstand such an attack, the rest of the system — from voters’ personal devices to the many servers a vote would pass through on its way to the blockchain — would remain vulnerable.
there’s the so-called penetration attack, like the University of Michigan incursion, in which an adversary gains control of a server and deliberately alters the outcome of an election.
While it’s true that information recorded on a blockchain cannot be changed, a determined hacker might well find another way to disrupt the process. Bitcoin itself has never been hacked, for instance, but numerous bitcoin “wallets” have been, resulting in billions of dollars in losses. In early June 2018, a South Korean cryptocurrency exchange was penetrated, causing the value of bitcoin to tumble and resulting in a loss of $42 billion in market value. So although recording the vote tally on a blockchain introduces a new obstacle to penetration attacks, it still leaves holes elsewhere in the system — like putting a new lock on your front door but leaving your basement windows open.
A blockchain is only as valuable as the data stored on it. And whereas traditional paper ballots preserve an indelible record of the actual intent of each voter, digital votes “don’t produce an original hard-copy record of any kind,”
In the end, democracy always depends on a certain leap of faith, and faith can never be reduced to a mathematical formula. The Economist Intelligence Unit regularly ranks the world’s most democratic counties. In 2017, the United States came in 21st place, after Uruguay and Malta. Meanwhile, it’s now widely believed that John F. Kennedy owed his 1960 win to election tampering in Chicago. The Supreme Court decision granting the presidency to George W. Bush rather than calling a do-over — despite Al Gore’s popular-vote win — still seems iffy. Significant doubts remain about the 2016 presidential race.
While little doubt remains that Russia favored Trump in the 2016 election, the Kremlin’s primary target appears to have been our trust in the system itself. So if the blockchain’s trendy allure can bolster trust in American democracy, maybe that’s a net positive for our national security. If someone manages to hack the system, hopefully they’ll do so quietly. Apologies to George Orwell, but sometimes ignorance really is strength.
when exchanging digital goods, how do you know somebody hasn’t sent the same asset to two people simultaneously?
use a ledger (a record of transactions) to track our trade.put our trust in this third party.we gave a copy of the ledger to every pokemon trader
if I had duplicated my card, sent one copy out earlier then tried to send the second one to you, the history of that trade would already exist, so my second trade to you would conflict and be rejected.
that digital signature that gets put on each block? That is actually generated based on the info in the block, so changing the data (i.e removing my trade) automatically changes the signature.
an open, decentralised, non-reversible, tamper-proof digital network for trading valuable assets.
This is a simplified version of how blockchain technology works, but it’s easy to see how this tech gives Bitcoin its unique and fascinating properties.
