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Martin Burrett

Pink Trombone - 52 views

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    Interesting voice simulator where you adjust the shape of the virtual mouth and voicebox to investigate how these work to produce sound.
Gareth Jones

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

  • 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.
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  • 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.
Martin Burrett

How Do Scientists Think? by @johnkaiser13 - 10 views

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    "Of course, I have always held the opinion that we are all still scientists in our own unique manner.  In light of that, I have chosen to write about how I think on this blog post.  There are two main types of blog posts on this site to 'demystify the life of a scientist'.  The first deals with large numbers or various statistics reported in the popular news with no real context provided."
Dallas McPheeters

Are 'Learning Styles' Real? - The Atlantic - 34 views

  • Really, Willingham says, people have different abilities, not styles. Some people read better than others; some people hear worse than others. But most of the tasks we encounter are only really suited to one type of learning. You can’t visualize a perfect French accent, for example.
    • Dallas McPheeters
       
      Learning Abilities not Learning Styles
meghankelly492

Music performance anxiety and occupational stress amongst opera chorus artists and their relationship with state and trait anxiety and perfectionism - ScienceDirect - 3 views

  • There has been no study exploring the prevalence or characteristics of MPA among professional choral musicians, who may be considered a vocal analogue of orchestral musicians. There may be systematic differences among different types of musicians regarding the level of performance anxiety experienced.
  • Chorus artists were ideal subjects for the proposed study because they are a clear exemplar of a group of musicians with high performance demands and expectations who have heavy rehearsal and performance schedules.
  • While this study suggests that treatment efforts be directed at reducing MPA rather than occupational stress, further investigation of the relationship between occupational stress and trait anxiety is needed.
anonymous

WorksheetWorks.com - 26 views

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    A superb worksheet generator. Browse and customise great looking sheets for English, maths, geography and more. The sheets come with answer keys and are ready to download as a PDF and print in just a few clicks. http://ictmagic.wikispaces.com/Cross+Curricular
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    Instantly prints worksheets according to the specifications your check as long as they are for educational purposes.
Martin Burrett

TeachBuzz - 95 views

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    A site for openly sharing lesson plans and resources you have made with educators around the world. http://ictmagic.wikispaces.com/Cross+Curricular
Lesley Grant

Teaching Ideas - Free lesson ideas, plans, activities and resources for use in the primary classroom. - 71 views

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    Ideas, resources, activities related to books, P-8
robert morris

STEM + Art: A Brilliant Combination - Education Week - 44 views

  • asked permission to hire an arts-integration teacher
  • and that year and subsequent years, the scores on the state assessments improved.
  • a compendium of 62 research studies that support the powerful positive academic and social effects of learning in and through the arts
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  • The research confirms what we know to be true. The arts impact all learning.
  • Neuroscience has also provided an emerging branch of research related to studying the arts. For instance, "Learning Arts and the Brain: The Dana Consortium Report on Arts and Cognition" reinforced the positive impact arts learning has on a young person's ability to retain information.
  • Neither the arts nor the sciences have a monopoly on teaching creativity, collaboration, or problem-solving skills.
  • The design process proved to be as important as the finished product.
  • Schools must provide opportunities for students to learn across disciplines. No longer can we teach in silos.
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    ""Education is not the filling of a pail, but the lighting of a fire." -William Butler Yeats"
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    ""Education is not the filling of a pail, but the lighting of a fire." -William Butler Yeats"
Sharin Tebo

Creative Educator - Connecting Curricula for Deeper Understanding - 34 views

  • Most schools will say that they want students to have an understanding of their world as a whole, but they seldom look at topics with an interdisciplinary focus. Why? It is easy to find reasons why this disjointed approach to learning happens: · Some argue that there is so much content and so many skills to be learned  in each discipline that they don’t have time to integrate subjects. · Others say that the each discipline has a body of knowledge and skills that  should stand on its own and not be muddied by the intrusion of other disciplines. · Secondary educators say that there is insufficient common planning time  to combine their efforts to teach an interdisciplinary course. · Still others say that the whole system is geared toward separate subjects  and to break out of this would require a monumental effort. · Others are guided by “the tests,” which are presented by separate disciplines.
  • The ultimate goal for the study of any subject is to develop a deeper understanding of its content and skills so that students can engage in higher-level thinking and higher- level application of its principles. When students dig deeper and understand content across several disciplines, they will be better equipped to engage in substantive discussion and application of the topic. They will also be better able to see relationships across disciplines.
  • They organize students into interdisciplinary teams and coordinate lessons so that what happens in math, science, language arts, and social studies all tie to a common theme. Many times these teachers team-teach during larger blocks of time. Advocates of this more holistic approach to curriculum argue that it helps students:
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  • Of course, digging deeper doesn’t fit well in the time frame that most schools use. It takes time to link content across several disciplines, and it may be difficult to squeeze a learning activity into a 40-minute period. To change the method of learning will mean changing more than the curricula. The school structure, including the schedule and methodology will also need to change.
  • To prepare our students for an integrated world, we need to break out of the separate-discipline mentality and develop more holistic and problem/project-based approaches. Many have tried to do this, and it isn’t easy.
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    STEM and STEAM--challenge to aim for more integration cross-disciplines.
Martin Burrett

Wlonk Elements - UKEdChat.com - 17 views

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    "An interactive periodic table of elements showing common uses, properties, description and more."
pauljola

The Anthropocene epoch: scientists declare dawn of human-influenced age | Science | The Guardian - 13 views

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    Guardian article on Anthropocene
Maureen Greenbaum

How diplomas based on skill acquisition, not credits earned, could change education - The Hechinger Report - 15 views

  • a new teaching approach here called “proficiency-based education” that was inspired by a 2012 state law.
  • law requires that by 2021, students graduating from Maine high schools must show they have mastered specific skills to earn a high school diploma.
  • CompetencyWorks, a national organization t
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  • By 2021, schools must offer diplomas based students reaching proficiency in the four core academic subject areas: English, math, science and social studies. By 2025, four additional subject areas will be included: a second language, the arts, health and physical education.
  • proficiency-based idea has also created headaches at some schools for teachers trying to monitor students’ individual progress.
  • Students have more flexibility to learn at their own pace and teachers get time to provide extra help for students who need it
  • It wasn’t for lack of trying,” Bowen said. “It was a systems design problem.”
  • offer students clarity about what they have to learn and how they are expected to demonstrate they’ve learned it.
  • at schools that have embraced the new system, teachers say they are finding that struggling students are seeing the biggest gains because teachers are given more time to re-teach skills and students better understand the parameters for earning a diploma.
  • Deciding to believe that all students are capable of learning all of the standards, she said, “was scary.”
  • Multiple-choice questions have virtually disappeared. Homework is checked, but not graded.
  • students get less than a proficient score, they must go back and study the skill they missed. They are then given a chance to retake the relevant portions of the test until they earn a satisfactory score.
  • We inherited a structure for schooling that was based on time and on philosophical beliefs that learning would be distributed across a bell curve,
  • get crystal clear about what we want students to know and be able to do and then how to measure it.”
jnet0124

Can Mary Shelley's Frankenstein be read as an early research ethics text? | Medical Humanities - 7 views

shared by jnet0124 on 13 Nov 17 - No Cached
  • Can Mary Shelley’s Frankenstein be read as an early research ethics text?
    • jnet0124
       
      SEE HEAR
  • Frankenstein is an early and balanced text on the ethics of research upon human subjects and that it provides insights that are as valid today as when the novel was written.
  • Mary Shelley conceived the idea for and started writing Frankenstein in 1816 and it was first published in 1818.1 In its historical context, the earlier 17th and 18th centuries had seen the early signs of the rise of science and experimentation. Francis Bacon (1561–1626) had laid the theoretical foundations in his “Great Insauration”2 and scientists such as Boyle, Newton, and Hooke developed the experimental methods. Sir Robert Talbor, a 17th century apothecary and one of the key figures in developing the use of quinine to treat fevers, underlined this: “the most plausible reasons unless backed by some demonstrable experiments seem but suppositions or conjectures”.3
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  • The 18th century saw the continued construction of foundations upon which all subsequent medical experimentation has been built.
  • Lady Mary Montagu promoted smallpox vaccination; its proponents experimented on prisoners to study its efficacy, and James Jurin, the secretary of the Royal Society, developed mathematical proof of this in the face of ecclesiastical opposition.4 Many of the modern concepts of therapeutic trials were described although not widely accepted. Empirical observation through experimentation was starting to be recognised as the tool that allowed ascertainment of fact and truth. An account of Dr Bianchini’s experiments on “Le Medicin Electrique”, reported to the Royal Society explains that “The experiments were made by Dr Bianchini assisted by several curious and learned men … who not being able to separate what was true … determined to be guided by their own experiments and it was by this most troublesome though of all the others the most sure way, that they have learned to reject a great number of what have been published as facts.”5
  • Similarly, Henry Baker’s report to the Royal Society, describing Abbe Nollet’s experiments, outlined the need for comparative studies and that “treatment should not be condemned without a fair trial”6 and a Belgian doctor, Professor Lambergen, describing the use of deadly nightshade for the treatment of breast cancer wrote “Administration of this plant certainly merits the attention of the medical profession; and surely one may add entitles the medicine to future trials … nevertheless the most efficacious medicines are such if its efficacy by repeated trials be approved.”7 In the mid 18th century James Lind conducted the first controlled trial to establish a cure for scurvy and his Treatise on the Scurvy contains what could be seen in modern terminology as the first “review of the current literature” prior to a clinical trial.8
  • Her motives for writing Frankenstein are more difficult to define. In her introduction to the 1831 edition she writes that she wanted her work to … speak to the mysterious fears of our nature and awaken thrilling horror—one to make the reader dread to look round. If I did not accomplish these things, my ghost story would be unworthy of its name … (p 7, p 8)
  • The 1818 preface, written by Percy Bysshe Shelley, indicates a deeper purpose. He wrote that the story recommends itself as it “…affords a point of view on the imagination for the delineating of human passions more comprehensive and commanding than any which the ordinary relations of existing events can yield…” (p 11) and that “…I am by no means indifferent to the manner in which ... moral tendencies (that) exist in the sentiments of characters shall affect the reader…”(p 12).
Martin Burrett

Ecology Lab - 18 views

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    "An interesting food chain/web simulator to help your pupils understand the interdependence within an ecosystem."
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