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Kristen Rush

Middle School Science with Vernier - 5 views

www.vernier.com/msv.html

science lesson probes vernier middle school junior high

shared by Kristen Rush on 30 Oct 08 - Cached
  • Kristen Rush on 30 Oct 08
     
    Middle School Science with Vernier probes - the Lab manual - what activities work with which probes.
ekpeterson

Educational Leadership:Teaching Screenagers:Too Dumb for Complex Texts? - 72 views

www.ascd.org/...b-for-Complex-Texts%C2%A2.aspx

reading technology education texts complex learning resources

shared by ekpeterson on 06 Mar 16 - No Cached
  • Willingness to Probe
  • readers may need to sit down with them for several hours of concentration.
  • hey insert a hesitant question before moving on.
  • ...8 more annotations...
  • That willingness to pause and probe is essential, but the dispositions of digital reading run otherwise. Fast skimming is the way of the screen. B
  • they have grooved for many years a reading habit that races through texts, as is the case with texting, e-mail, Twitter, and other exchanges, 18-year-olds will have difficulty suddenly downshifting when faced with a long modernist poem.
  • They are deep and semiconscious behaviors that are difficult to change except through the diligent exercise of other reading behaviors.
  • Texts like this one are too complex to allow for rapid exit and reentry. They often originate in faraway times and places and discuss ideas and realities entirely unfamiliar to the modern teenager. To comprehend what they say requires a suspension of present concerns.
  • Finally, the comprehension of complex texts depends on a receptive posture in readers. They have to finish the labor of understanding before they talk back, and complex texts delay the reaction for hours and days.
  • Digital communications, on the other hand, especially those in the Web 2.0 grain, encourage quick response.
  • Complex texts aren't so easily judged. Often they force adolescents to confront the inferiority of their learning, the narrowness of their experience, and they recoil when they should succumb.
  • reserve a crucial place for unwired, unplugged, and unconnected learning. One hour a day of slow reading with print matter, an occasional research assignment completed without Google—any such practices that slow down and intensify the reading of complex texts will help.
Mr. Stanley

Department of Psychology :: Principles of Learning :: University of Memphis - 62 views

www.psyc.memphis.edu/...lp3.shtml

testing education retention recall teaching

shared by Mr. Stanley on 22 Jan 11 - No Cached
  • The single most important variable in promoting long-term retention and transfer is "practice at retrieval"
  • -learners generate responses, with minimal retrieval cues, repeatedly, over time.
  • without relying on external memory aids.
  • ...16 more annotations...
  • practice at retrieval has been shown to be more effective than merely spending more time studying the material without actively engaging in memory retrieval.
  • By doing so repeatedly, especially in varied contexts, the learner strengthens access to this information,
  • given minimal cues
  • two different effects. One is the "testing effect," in which intervening tests improves learning of concepts that are retrieved from memory
  • when intervening tests are spaced, two tests were more effective than a single test in improving long-term retention of material.
  • Compared to a cued-recall or recognition intervening test, a free-recall test produced better performance on a final test, regardless of the format of the final test.
  • Educational Applications
  • Align lectures, assignments and tests, so that important information will have to be remembered at different times
  • Have students retrieve this information in multiple ways by either varying the questions or context in which it is assessed:
  • During lectures, ask students questions to elicit responses that reflect understanding of previously introduced course material.
  • This serves the dual purpose of probing students' knowledge, so that misconceptions can be directly and immediately addressed in the lecture.
  • On homework assignments, have students retrieve key information from lectures and readings.
  • Chapter summaries, for instance, may include study questions that ask students to recall major points or conclusions to be drawn from the reading.
  • Encourage group studying in which students actively discuss course topics
  • test questions offer another opportunity for "practice at retrieval,"
  • Ideally tests should be cumulative and test items should probe for understanding of the material.
pjt111 taylor

Probe-Create Change-Reflect: A spin-off blog - 9 views

pcrcr.wordpress.com/...2%80%94reflect-a-spin-off-blog

blog critical thinking creative reflective practice

shared by pjt111 taylor on 25 Jan 11 - No Cached
  • pjt111 taylor on 25 Jan 11
     
    A blog related to my work helping mid-career or career-changing students to "develop reflective practice as we change our schools, workplaces, and lives." (Shameless plug)
Deborah Baillesderr

50 End-of-School-Year, Self-Probing Questions for Educators - Getting Smart by John Har... - 104 views

gettingsmart.com/...lf-probing-questions-educators

end_of_year educators'_questions

shared by Deborah Baillesderr on 24 May 14 - No Cached
  • Deborah Baillesderr on 24 May 14
     
    Reflection is always good.
pjt111 taylor

Daily writing: From a worthy discipline to a self-sustaining experience « Pro... - 40 views

pcrcr.wordpress.com/...o-a-self-sustaining-experience

writing Boice

shared by pjt111 taylor on 07 Mar 11 - No Cached
  • pjt111 taylor on 07 Mar 11
     
    "It is the experience of generativity, inner-directedness, and self worth, more than the virtues of disciplined practice, that I now plan to invoke in promoting daily writing to others. "
pjt111 taylor

When the Social, not the Medium, is the Message: On the spaces we make for vi... - 28 views

pcrcr.wordpress.com/...-and-face-to-face-interactions

online virtual space social media

shared by pjt111 taylor on 08 Apr 11 - No Cached
  • pjt111 taylor on 08 Apr 11
     
    "Periodically I find myself confused about my online presence and contributions. Am I using wikis, blogs, twitter, social networks, and email effectively? Effective by what criteria? Indeed, who am I trying to influence? My explorations of what others say about this recently has led me to a position-albeit a provisional one... The social, not the medium (or technology), should be the primary consideration. The criterion we need to apply in designing our online presence and contributions could be something like: "Am I welcoming and cultivating apprentices who are getting prepared to go on and cultivate the kinds of interaction in virtual and physical space that support their own work?" "
Gareth Jones

Looking in the Wrong Places | Edge.org - 5 views

www.edge.org/...er-looking-in-the-wrong-places

NaturalScience senseperception paradigm

shared by Gareth Jones on 19 May 18 - No Cached
  • We should be very careful in thinking about whether we’re working on the right problems. If we don’t, that ties into the problem that we don’t have experimental evidence that could move us forward. We're trying to develop theories that we use to find out which are good experiments to make, and these are the experiments that we build.   We build particle detectors and try to find dark matter; we build larger colliders in the hope of producing new particles; we shoot satellites into orbit and try to look back into the early universe, and we do that because we hope there’s something new to find there. We think there is because we have some idea from the theories that we’ve been working on that this would be something good to probe. If we are working with the wrong theories, we are making the wrong extrapolations, we have the wrong expectations, we make the wrong experiments, and then we don’t get any new data. We have no guidance to develop these theories. So, it’s a chicken and egg problem. We have to break the cycle. I don’t have a miracle cure to these problems. These are hard problems. It’s not clear what a good theory is to develop. I’m not any wiser than all the other 20,000 people in the field.
  • I’m still asking myself the same question that I asked myself ten years ago: "What is going on in my community?" I work in the foundations of physics, and I see a lot of strange things happening there. When I look at the papers that are being published, many of them seem to be produced simply because papers have to be produced. They don’t move us forward in any significant way. I get the impression that people are working on them not so much because it’s what they’re interested in but because they have to produce outcomes in a short amount of time. They sit on short-term positions and have short-term contracts, and papers must be produced.
  • The field that I mostly work in is the foundations of physics, which is, roughly speaking, composed of cosmology, the foundations of quantum mechanics, high-energy particle physics, and quantum gravity. It’s a peculiar field because there hasn’t been new data for almost four decades, since we established the Standard Model of particle physics. There has been, of course, the Higgs particle that was discovered at the LHC in 2012, and there have been some additions to the Standard Model, but there has not been a great new paradigm change, as Kuhn would have put it. We’re still using the same techniques, and we’re still working with the same theories as we did in the 1970s.
  • ...10 more annotations...
  • That makes this field of science rather peculiar and probably explains why there hasn’t been much progress. But it’s not like we don’t have any questions that need to be answered. There are a lot of questions that have been around for decades. For example, what is dark energy? What is dark matter? What are the masses of the Standard Model particles? And what’s up with the foundation of quantum mechanics? Is a theory that's fundamentally not deterministic, where we cannot predict outcomes, the last word that we have, or is there something more to it? Is there maybe another underlying structure to reality?
  • but we haven't reached the fundamental level. Maybe we will never reach it. Certainly, the theories that we have right now are not all there is. The question is, of course, if we don’t have any guidance by experiment, how do we make progress? And are we doing the right thing?
  • We’ve reached this point where we have to carefully rethink if the criteria that we’re using to select our theories are promising at all. If one looks at the history of this field in the foundations of physics, progress has usually been made by looking at questions that, at least in hindsight, were well posed, where there was an actual mathematical contradiction. For example, special relativity is incompatible with Newtonian gravity. If you try to resolve this incompatibility, you get general relativity.
  • There are various similar examples where such breakthroughs have happened because there was a real problem. There was an inconsistency and people had to resolve it. It had nothing to do with beauty. Maybe beauty was, in some cases, the personal motivation of the people to work on it. There’s certainly some truth to this, but I don’t think it’s good to turn this story around and say that if we only pay attention to this motivation that comes from ideals of beauty it will lead to progress.
  • If we are working with the wrong theories, we are making the wrong extrapolations, we have the wrong expectations, we make the wrong experiments, and then we don’t get any new data. We have no guidance to develop these theories. So, it’s a chicken and egg problem. We have to break the cycle. I don’t have a miracle cure to these problems. These are hard problems. It’s not clear what a good theory is to develop. I’m not any wiser than all the other 20,000 people in the field.
  • The way that research is funded in foundations of physics and in many other fields just puts a lot of things at a disadvantage that are not pursued anymore. Typically, everything that takes longer than three years to complete, no one will start it because they can’t afford it. They can literally not afford it.
  • Who makes the decisions about the funding? Superficially, people say that it's a funding agency, so it’s the university who get to hire people. But that puts the blame on the wrong party. In the end it’s the community itself who makes the decisions. What do the funding agencies do if they get a proposal? They send it to reviewers. And who are the reviewers? They're people from the same community. If you look at how hiring decisions are being made, there’s some committee and they are people from the same community. They have some advisory boards or something, which contains people from the same community.
  • Even if that wasn’t so, what the people in these committees would be doing is looking at easy measures for scientific success. Presently, the most popular of these measures are the number of publications and the number of citations. And maybe also whether the person has published in high-impact journals. So, these are the typical measures that are presently being used. But what do they measure? They primarily measure popularity. They indicate whether somebody’s research is well received by a lot of people in the same community. And that’s why once a research area grows beyond a certain critical mass, you have sufficiently many people who tell each other that what they’re doing is the good thing to do. They review each other’s papers and say that that’s great and it's what we should continue to do. It’s a problem in all communities that grow beyond a certain size.
  • I later came to the United States and then Canada, and that gave me the opportunity to learn a lot about quantum gravity. I also figured out that much of what goes on in quantum gravity is very detached from reality. It’s pretty much only mathematics. Yes, the mathematics is there, but I still don’t know if it’s the mathematics that describes reality.
  • That’s the very reason why we don’t normally think of gravity as a weak force. It’s the only force that is left over on long distances, and the reason for this is that it adds up. It gets stronger the more mass you pile up. More precisely, we should say that the reason we find it so hard to measure quantum gravitational effects is that we either have a particle that has very pronounced quantum properties, like, say, a single electron or something like that, but then it’s so light that we cannot measure the gravitational field. Or we have some object that is so heavy that we can measure the gravitational field, but then it doesn’t have quantum properties. Okay, so that’s the actual problem.
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