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Randy Yerrick

Misconceptions of Science: what is a chemical bond - YouTube - 8 views

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    Because of the way bonding is taught in high school, many students believe chemical bonds isa form of matter holding them together. Students do not understand bonding is more of an attraction holding the atoms together.
Adrienne Michetti

Where Everybody Knows Your (Screen) Name: Online Games as "Third Places" - 52 views

    • Adrienne Michetti
       
      This is, I think, why I'm more keen on today's social networks than I am on games -- games do not provide deep emotional support.
  • "bowling alone" hypothesis (Putnam, 2000), which suggests that media are displacing crucial civic and social institutions
    • Adrienne Michetti
       
      Putnam - need to check this article. Interesting; not sure I agree.
  • ...80 more annotations...
  • According to Putnam, time spent with relatively passive and disengaging media has come at the expense of time spent on vital community-building activities.
  • The evidence to date is mixed
  • A core problem on both sides of the debate is an underlying assumption that all Internet use is more or less equivalent
    • Adrienne Michetti
       
      SO True
  • It would be more plausible and empirically rigorous, then, to consider how specific forms of Internet activity impact civic and social engagement as a result of their particular underlying social architectures
  • combining conclusions from two different lines of MMO research conducted from two different perspectives—one from a media effects approach, the other from a sociocultural perspective on cognition and learning.
  • By providing spaces for social interaction and relationships beyond the workplace and home, MMOs have the capacity to function as one form of a new "third place" for informal sociability much like the pubs, coffee shops, and other hangouts of old.
  • loosely structured by open-ended narratives
  • They are known for their peculiar combination of designed "escapist fantasy" and emergent "social realism"
  • from two research projects: one an examination of the media effects of MMOs, the other an ethnographic study of cognition and culture in such contexts.
  • the conclusions of both studies were remarkably aligned.
  • the assumption that the most fruitful advances are sometimes made when congruent findings are discovered through disparate means
    • Adrienne Michetti
       
      Love this quote.
  • demonstrate the "effects" of game play vs. no game play.
  • first project was a traditional effects study
  • second project, a qualitative study of cognition and learning in MMOs (
  • ethnography
  • sociocultural perspective
  • as a way to tease out what happens in the virtual setting of the game and how the people involved consider their own activities, the activities of others, and the contexts in which those activities takes place
  • a reasonable level of generalizability (random assignment to condition in the first study) and contextualization (ethnographic description of existing in-game social networks and practices in the second)
    • Adrienne Michetti
       
      but I wonder why he chose these games -- this is not specified. Only their success in US and abroad?
  • brick-and-mortar "third places" in America where individuals can gather to socialize informally beyond the workplace and home
  • the exaggerated self-consciousness of individuals.
  • In what ways might MMOs function as new third places for informal sociability?
  • virtual environments have the potential to function as new (albeit digitally mediated) third places similar to pubs, coffee shops, and other hangouts.
  • in this section we analyze the structural form of MMOs that warrants this "third place" assertion.
  • eight defining characteristics of third places
  • there is no default obligation
  • To oblige any one person to play requires that explicit agreements be entered into by parties
  • the default assumption is that no one person is compelled to participate legally, financially, or otherwise.
  • Unless one transforms the virtual world of the game into a workplace (e.g., by taking on gainful employment as a virtual currency "farmer" for example, Dibbell, 2006; Steinkuehler, 2006a) or enters into such agreement, no one person is obligated to log in
    • Adrienne Michetti
       
      and this is why, in my opinion, you will never see games in school. The game cannot be the Third Place because school is a Second Place.
  • Yee's (2006) interviews also reveal that individuals who game with romantic partners or family find that such joint engagement in the "other world" of MMOs allows them to redefine the nature and boundaries of their offline relationships, often in more equitable terms than what may be possible in day-to-day offline life
  • the relationships that play-partners have with one another offline are often "leveled" within the online world
  • an individual's rank and status in the home, workplace, or society are of no importance
  • appeal to people in part because they represent meritocracies otherwise unavailable in a world often filled with unfairness
  • conversation plays an analogous role
  • "In all such systems, linguistic interactions have been primary: users exchange messages that cement the social bonds between them, messages that reflect shared history and understandings (or misunderstandings) about the always evolving local norms for these interactions" (p. 22).
  • third places must also be easy to access
  • such that "one may go alone at almost any time of the day or evening with assurance that acquaintances will be there"
  • accessible directly from one's home, making them even more accommodating to individual schedules and preferences
  • barriers to initial access.
  • "What attracts a regular visitor to a third place is supplied not by management but by the fellow customer,"
  • "It is the regulars who give the place its character and who assure that on any given visit some of the gang will be there"
  • affective sense
  • As one informant satirically commented in an interview, "You go for the experience [points], you stay for the enlightening conversation.
  • engendering a sense of reliable mentorship and community stability.
  • Oldenburg argues that third places are characteristically homely, their d�cor defying tidiness and pretension whenever possible. MMOs do not fit this criterion in any literal sense
  • In neither of our investigations did the degree of formality exhibited by players within the game bear any relation to the degree of visual ornamentation of the players' immediate vicinity.
  • Thus, while the visual form of MMO environments does not fit Oldenburg's (1999) criterion of "low profile," the social function of those environments does.
  • Oldenburg (1999) argues that seriousness is anathema to a vibrant third place; instead, frivolity, verbal word play, and wit are essential.
  • The playful nature of MMOs is perhaps most apparent in what happens when individuals do bring gravity to the game.
  • the home-like quality of third places in rooting people
  • Participation becomes a regular part of daily life for players and, among regular gamemates such as guild members, exceptional absences (i.e., prolonged or unforeseen ones) are queried within the game or outside i
  • create an atmosphere of mutual caring that, while avoiding entangling obligations per se, creates a sense of rootedness to the extent that regularities exist, irregularities are duly noted, and, when concerning the welfare of any one regular, checked into
  • Are virtual communities really communities, or is physical proximity necessary?
  • Anderson (1991), who suggests that geographic proximity itself is neither a necessary nor sufficient condition for the emergence and preservation of "community."
  • Social capital (Coleman, 1988) works analogously to financial capital; it can be acquired and spent, but for social and personal gains rather than financial
  • operates cyclically within social networks because of their associated norms of reciprocity
  • bridging social capital is inclusive.
  • This form of social capital is marked by tentative relationships, yet what they lack in depth, they make up for in breadth.
  • On the one hand, bridging social capital provides little in the way of emotional support; on the other hand, such relationships can broaden social horizons or worldviews, providing access to information and new resources.
  • bonding social capital is exclusive.
  • social superglue.
  • it can also result in insularity.
  • shows that bridging and bonding social capital are tied to different social contexts, given the network of relationships they enable.
  • Virtual worlds appear to function best as bridging mechanisms rather than as bonding ones, although they do not entirely preclude social ties of the latter type.
  • One could argue that, if the benchmark for bonding social capital is the ability to acquire emotional, practical, or substantive support, then MMOs are not well set up for the task:
  • While deep affective relationships among players are possible, they are less likely to generate the same range of bonding benefits as real-world relationships because of players' geographic dispersion and the nature of third places themselves.
  • Despite differences in theoretical grounding and methodologies, our conclusions were remarkably similar across complementary macro- and micro-levels.
  • It is worth noting, however, that as gamers become more involved in long-term social networks such as guilds and their activities become more "hardcore" (e.g., marked by participation in large-scale collaborative problem-solving endeavors such as "raids" into difficult territories or castle sieges), the function of MMOs as "third places" begins to wane.
  • It may be, then, that the structure and function of MMOs as third places is one part of the "life cycle" for some gamers in a given title.
  • In such cases, MMOs appear to enable a different kind of sociability, one ostensibly recognizable as a "community" nonetheless.
  • However, our research findings indicate that this conclusion is uninformed. To argue that MMO game play is isolated and passive media consumption in place of informal social engagement is to ignore the nature of what participants actually do behind the computer screen
  • Perhaps it is not that contemporary media use has led to a decline in civic and social engagement, but rather that a decline in civic and social engagement has led to retribalization through contemporary media (McLuhan, 1964).
  • Such a view, however, ignores important nuances of what "community" means by pronouncing a given social group/place as either wholly "good" or "bad" without first specifying which functions the online community ought to fulfill.
  • Moreover, despite the semantics of the term, "weak" ties have been shown to be vital in communities, relationships, and opportunities.
  • is to what extent such environments shift the existing balance between bridging and bonding
  • In light of Putnam's evidence of the decline of crucial civic and social institutions, it may well be that the classification "lacking bridging social capital" best characterizes the everyday American citizen. T
  • Without bridging relationships, individuals remain sheltered from alternative viewpoints and cultures and largely ignorant of opportunities and information beyond their own closely bound social network.
  • it seems ironic that, now of all times, we would ignore one possible solution to our increasingly vexed relationship with diversity.
Martin Burrett

Number bonds worksheets - 47 views

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    Create a 'number bonds to...' worksheet. The sheets can be customised by choosing which number to total to. http://ictmagic.wikispaces.com/Maths
Randy Yerrick

Animated Chemical Bonding | Creative Educator - 13 views

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    I like this idea of having the students write a narrative for how the bonds form and creating a model for it.  I think it would be better if there was some type of computer program where they can create the model electronically instead of using clay.
Martin Burrett

Math Line - 64 views

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    A fun maths game where player shoot numbers to make number bonds. http://ictmagic.wikispaces.com/Maths
Martin Burrett

Monster Bus - 103 views

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    A fun game which practises maths skills, including number bonds to 10 with decimals by driving the monster bus around the town to take little monsters to school. http://ictmagic.wikispaces.com/Maths
psmiley

Education Week: 'Real World' Social Media Helps Students Bond, Say Researchers - 39 views

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    "Real World" social media helps students be more "real" in making connections
psmiley

Education Week: 'Real World' Social Media Helps Students Bond, Say Researchers - 26 views

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    Social media and virtual learning
Jac Londe

Analyzing General Electric's Debt And Risk - Seeking Alpha - 17 views

  • Analyzing General Electric's Debt And Risk
  • 1. Total Debt = Long-Term Debt + Short-Term Debt
  • 2. Total Liabilities
  • ...7 more annotations...
  • 4. Debt ratio = Total Liabilities / Total Assets
  • 3. Total Debt to Total Assets Ratio = Total Debt / Total Assets
  • 6. Capitalization Ratio = LT Debt / LT Debt + Shareholders' Equity(LT Debt = Long-Term Debt)
  • 5. Debt to Equity Ratio = Total Liabilities / Shareholders' Equity
  • 7. Cash Flow to Total Debt Ratio = Operating Cash Flow / Total Debt
  • 8. Cost of debt (before tax) = Corporate Bond rate of company's Bond rating.
  • 9. Current tax rate ( Income Tax total / Income before Tax)
Jim Aird

US Department of Education Endorses "Pay for Success" Bonds for Pre-K Special Education | Diane Ravitch's blog - 25 views

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    Paying banks to lower SPED costs?  Sure, I can see how that makes sense.  Paying the schools to serve the students sure has been a silly solution for all these years, and so simple Thank goodness that the DOE and the banks have made this clearer.
Bob Calder

K12 Manifesting Its Corporate Destiny - Seeking Alpha - 18 views

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    Revealing article about junk bond king Milliken, William Bennett, and their company K12.com that runs virtual schools for many states.
Karen Field

Ch. 2, The Scarlet Letter, Nathaniel Hawthorne, 1850 - 0 views

  • The grass-plot before the jail, in Prison Lane, on a certain summer morning, not less than two centuries ago, was occupied by a pretty large number of the inhabitants of Boston; all with their eyes intently fastened on the iron-clamped oaken door. Amongst any other population, or at a later period in the history of New England, the grim rigidity that petrified the bearded physiognomies of these good people would have augured some awful business in hand. It could have betokened nothing short of the anticipated execution of some noted culprit, on whom the sentence of a legal tribunal had but confirmed the verdict of public sentiment. But, in that early severity of the Puritan character, an inference of this kind could not so indubitably be drawn. It might be that a sluggish bond-servant, or an undutiful child, whom his parents had given over to the civil authority, was to be corrected at the whipping-post. It might be, that an Antinomian, a Quaker, or other heterodox religionist, was to be scourged out of the town, or an idle or vagrant Indian, whom the white man's fire-water had made riotous about the streets, was to be driven with stripes into the shadow of the forest. It might be, too, that a witch, like old Mistress Hibbins, the bitter-tempered widow of the magistrate, was to die upon the gallows.
    • Karen Field
       
      This iron-clamped oaken door is a parallel to the harshness of the Puritans.
Holly Barlaam

Biological Animations - 159 views

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    simple, easy to understand biology animations covering many topics such as hydrogen bonding between water molecules, the fluidity of the cell membrane, protein folding, channels used in membrane transport (gated versus non-gated), motor proteins, and much more
Randy Yerrick

Middle School Chemistry | Download Free Science Activities, Access Chemistry Multimedia, Find Information on Workshops - 113 views

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    Great website with lesson plans and lots of multimedia covering basic chemistry topics. Though titled "middle school chemistry" much of the material can be referred to or used for basic high school chemistry or even biology (such as the basics on bonding, water molecules, etc).
  • ...1 more comment...
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    Agreed. The chapter on the periodic table is worth it just for the animations, let alone the lesson plans and other resources. What a good get, Holly. Kudos to the American Chemical Society for setting it up.
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    Worth a bump, I stumbled upon this gem today. Excellent resource, there is even a free pdf textbook.
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    Middle School Chemistry lessons with worksheets and standards.
mike van kerkhove

bozemanscience - 47 views

  • Lewis diagrams are a two-dimensional representations of covalent bonds and the VSEPR models show how the molecule could exist in three dimensional space.
    • mike van kerkhove
       
      And click on Biology
    • mike van kerkhove
       
      Click on Videos
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    Home of exception video-podcasts for AP Biology by Paul Anderson.  
Jac Londe

Apprendre la Bourse - Notions de base | Courtage en ligne Disnat - 0 views

  • TOUT CE QU'IL FAUT SAVOIR SUR LA NÉGOCIATION
  • TUTORIELS DISPONIBLES Actions Les actions Stratégies de sélection des actions L'analyse fondamentale L'analyse des ratios L'analyse technique Les fonds négociés en bourse Opération sur marge La vente à découvert Les premiers appels publics à l'épargne Les fonds communs Qu'est-ce qu'un fonds de placement? Comment choisir un fonds de placement   Rendement   Rang quartile   Frais de gestion   Valeur éthique des placements   Style de gestion Les styles de gestion Investir d'un coup ou    étaler vos achats? Centre de fonds Disnat   Les options Introduction Qu'est-ce qu'une option? Pourquoi les investisseurs     utilisent-ils des options Exemple concret illustrant le fonctionnement des options Les différentes sortes d'options Lecture de la cote des options Conclusion et ressources   Revenu fixe Principes fondamentaux des obligations Le marché monétaire   Planifier sa retraite Visitez le centre de planification de retraite   Glossaire Consultez le glossaire financier  
Jac Londe

Startup turns carbon dioxide into fuels - 1 views

  • Today, carbon dioxide (CO2) is a hot topic. Scientists around the globe are searching for ways to store, dispose of, or prevent the formation of the greenhouse gas, which is a major driver of global climate change. Liquid Light hopes to take this concept one step further and harness waste CO2 as a source of carbon to make industrial chemicals and fuels.
  • Take CO2 and mix it in a water-filled chamber with an electrode and a catalyst. The ensuing chemical reaction converts CO2 into a new molecule, methanol, which can be used as a fuel, an industrial solvent or a starting material for the manufacture of other chemicals.
  • Bocarsly likes to call the process "reverse combustion" because it is like running a burning reaction backwards. Instead of burning fuel and oxygen to produce CO2, the CO2 converts back into fuel and oxygen.
  • ...2 more annotations...
  • Cole set up a flask containing a solution of CO2 and a pyridinium catalyst dissolved in water. In place of sunlight, which emits a broad spectrum of wavelengths of light, she shined on the flask a blue light-emitting diode (LED) because it gives off certain wavelengths that are highly efficient at driving the reaction. In the flask she placed an electrode that is activated by particles of light, or photons. "We used a semiconductor electrode that would allow us to substitute light for electricity," said Cole.
  • The Princeton scientists did some additional studies, and made a surprising discovery: They could turn CO2, which contains only one carbon, into a compound with a carbon-carbon bond, which vastly increases the possibilities for creating commercial applications.
Oscar Tapara

Stocks, Bonds, and Investing: Oh, My! - 30 views

  • However, that is not the case with ETFs.
    • Oscar Tapara
       
      ETFs doesn't has fees?, just 1.5 of your investment?
    • Oscar Tapara
       
      No, just fro .18% NAV. So. you are trading mutual fund for very cheap
  • The good news is your costs.
  • ETFs are created by companies for the specific purpose of low management costs, estimated to be around .18% of your NAV.
  • ...18 more annotations...
  • But Wait! There's More.Again
  • There is yet another advantage ETFs have over mutual funds
  • and that is their tax benefit
  • However, unlike mutual funds, ETFs do not sell stocks to pay for redemptions
  • As people withdraw their money from a mutual fund, the mutual fund must sell securities to cover those redemptions. So, every time the mutual fund sells a stock, you have to pay capital gains tax on it.
  • This being the case, the capital gains that you must pay on an ETF are much less than that of a mutual fund because of the lack of capital gains.
  • Danger, Will Robinson!
  • However, be careful not to confuse
  • an ETF
  • ith an Indexed Mutual Fund
  • Indexed Mutual Funds are mutual funds provided by a mutual fund company
  • But, just like any other mutual fund, you have to pay fees
  • Vanguard will charge you managerial fees to set up and manage the fund.
  • The ETF's Potential Disadvantage
  • they do have a potential drawback
  • What it really depends upon is how much you are going to invest and how frequently you are going to invest.
  • If you're only going to invest $200 a month in an ETF, the $20 commission results in an immediate 10% loss,
  • Just something to think about before you jump into ETFs.
kurt stavenhagen

steindl-rast | zen writ - 12 views

  • combine our intellect with will and our emotions, only than can we truly understand the meaning of gratefulness.
    • kurt stavenhagen
       
      Sometimes I think that he tries too hard to separate the intellect from the will. I wonder on a physiological level what this looks like in the brain: are their separate components in the brain for recognition and judgment. Perhaps there are. If so, should those be the terms rather than intellect and will?
  • its not giving up.
  • back to bed again”
  • ...21 more annotations...
  • haven’t reached them yet
  • Just to be living on this earth in this solar system in this galaxy in this universe is immensely rare and lucky.
  • to recognize is to accept something as true, but to acknowledge is to have a perspective, or how you choose to view that recognizable truth.
  • Some people feel the rain, and others just get wet
  • acknowledgement is perspective.
  • uses the word surprise as a way of saying be mindful and appreciate the little things in life that go on around you
  • ollowing this quote the author goes on to
  • because many of use feel a moral obligation to return our benefactor the favor thus making the seemingly “gratuitous act” a debt that we must repay by giving our own gift.
  • the bonds of interdependence set us free
  • once you can acknowledge a gift for a gift and acknowledge dependence then you’re free to go forward into full gratefulness.
  • yesterday morning my friend, knowing that I’m not an early bird, brought an extra granola bar to class just to give it to me which was a surprise that I had not expected. This was merely a simple surprise that I felt then, but after I thought it over again, this surprise made me realize how grateful I felt for having a such friend
  • By allowing ourselves to be helped in life and understanding that receiving help is not a show of weakness but in fact a show of mindfulness, we open ourselves up to the surprises and pleasures of communicating with people on a regular day basis
  • independent vs dependent. Being considered “legally” independent I have truly learned how dependent I am for others.
  • I always thought why would I hassle someone else for my incompetency
  • that weak need to feel weak in order to grow. We need to put everything out there and grow and learn from our experiences.
  • Letting weakness show is one of the strongest things we can do in order to know ourselves at a deeper level
  • Helping someone, whether it is a friend, neighbor or family member is something one should do out of the goodness of our heart. Everything comes full circle,
  • it is a personal choice to help others, and my way of reminding myself that I am grateful to be here,
  • I know what a horse looks like, feels like and moves like, but every time I go visit, I am still surprised and amused just by watching the horses out in the field.
  • The more grateful you become the more you appreciate life, which in a sense does make you younger because you are embracing living life
  • When my dad and hundreds of others died on 9/11/01 you could notice something different in the air.
  •  
    "teindl-Rast inspired me to start working on a project that I have been putting off. (ironically when I chose to read this passage I was procrastinating) There is never an ideal or perfect time for any person to start any task. Instead of taking this moment right now, we co"
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