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Sunday, 20 April 2014

The Van Hiele model - an outline

I reckon this blog isn't a ripe platform for discussing teaching approaches. It's just that the main focus here is to analyse nostalgia stuff that comes to mind at times. But since I've been involved with some teaching projects (in a skewed sort of way), I'd like to present a brief view on an underrated teaching approach which rose to recognition in the 70's to aid teachers who had been clueless about teaching geometry to their pupils. It is none other than the Van Hiele model (Van Hiele niveaus),created by a Dutch couple in 1957 and widely analysed by teachers and scholars alike in the late 70's and early 80's after proof of its core tenets holding true after it was shown that students at the lower levels of the Van Hiele model were unable to understand a single iota fed to them about geometric theorems and equations. It turned out their cognitive level was below the threshold necessary to be able to grasp the staple principles of planes and solid figures. The original work on which the theory is based was Structure and Insight: A theory of mathematical education (author unknown). The model is a classical example of wiskundedidactiek (mathematics education) reference and is specifically used for a didactic approach to teaching geometry at school level. Pierre van Hiele died on 1st November 2010 aged 101 at his home in Haag.

Basisidee
The basic premise behind this model  ,in a nutshell (weergegeven), is that learning geometry is achieved through gradual levels of cognitive awareness (graduele denkniveaus). Besides, the levels through which a student's progress is met bear no ties with their physiological age, although they do have specific eigenschappen (properties) which should become easier to observe following the levels' linear pattern. A specific level cannot be reached without the completion of a previous one, ie the learner's progress (de vordering van de leerlingen) follows the same succession of learnt competences towards utter understanding of the whole picture. Doing otherwise would be chewing more than one can swallow. Each level also makes use of its own language or linguistic symbols (linguïstische symbolen) and accompanying in-content relevance (inhoudbetekenis). It also holds that two students of diverging levels (verschillende niveaus) cannot understand each other. Odd, because the more competent peer is supposed to make sense out of what his inexperienced counterpart means as he was once at the same stage and should recall what what his gripes were at the time (the been there, done that argument).

Niveaus


The Van Hiele model consists of 5 levels, going from 0  to 5.
  • Niveau 0 : Visualisatie
  • Niveau 1 : Analyse
  • Niveau 2 : Ordening of classificatie
  • Niveau 3 : Informele deductie
  • Niveau 4 : Formeel

Retrieved from:
http://www.fisme.science.uu.nl/wiki/index.php/Niveautheorie_van_Van_Hiele

Monday, 24 March 2014

Curiosity






Omega Centauri is a spherical star cluster in the Centaurus constellation. There are strong leading indicators that the cluster is a remnant from a dwarf galaxy that once collide with the Milky Way. The system is isolated from any other celestial body when seen from the southern hemisphere, thus not visible anywhere in Europe. Its mass is not accurately determined by astronomers from European Southern Observatory in Chile.

Friday, 21 March 2014

Lafayette


Marie-Madeleine Pioche de La Vergne (Paris, 18 march 1634 - Aldaar, 25 may 1693), also known as Madame de la Fayette ) was a royal French writer. her most known work, La Princesse de Clèves, brought forth a new literary genre: the psychological novel. Her work is considered to be the first published French historic novel. She is widely regarded as one of the best french authoresses of the 17th century.



Works

In 1659, Madame de La Fayette settled in Paris for good. Under a year she would debut as a writer by writing for a publishing house run by Huet and Jean Regnault de Segrais. In 1661, she carried through to completion a novel titled La Princesse de Montpensier, which would eventually be issued a year later under the nom de plume of Segrais. In 1669 the first review about Zaide was released, an adventure story issued again under Segrais' name but which again had probably been co-authored by the striving female writer. The second half of the work was finished in 1671.

Madale de La Fayette's most famous work, La Princesse de Clèves, presumed to have started in 1672, was first issued in march 1678 by someone part of her circle of acquaintances. A narrative from around 1560 based on the court of Henry II tells the life story of the princess of Chartres, whom was limerence-struck by the Duke of Nemours. Since he is a different man than the one to whom she is married, it consitutes one of the first literary accounts of female infidelity and an early example of game dynamics played out in the wild, complete with the whole alpha male and beta male roles played to the hilt. Along with a typical female rationalisation hamster going the predictable path of gravitating towards the man with the perceived higher sexual market.
 
Three more works authored by Madame de La Fayette were eventually issued several years after her death: La Contesse de Tende, Histoire d' Henriette d'Anglaterre and Mémoires de la Cour de France.

Monday, 3 March 2014

Feminism is eating away at the influence of the Western Church

The real query is, what's behind all the accurate link play responsible for the Church's stooping to such a toxic idealism?

Acquiescence to what feminism preaches is just one problem of the Catholic Church. Not that they're supposed to stamp out any ideology bent on wreaking havoc on biological male/female dynamics, they can just overlook it and get on with their lives. Maybe their topsy turvy state is not even a result of their involvement with feminism, but there has definitely been a feminisation of their thought pattern. Now the Church seems it fit to word everything in a weepy, treacly way. It's just like feminism was once an important member of the Church until they got away with some embarrassing secret their pontiff masters held, like a treasure that had been improperly squirrelled away.

By the looks of it, it's hard to draw a different conclusion. The Church once held more power than they could handle, an abundance of influence that made they almost come apart at the seams. Now they have been demoted to something people pay heed to in case they have nothing else to fret about. And this is talking about religious people. The number of irreligious people has never been on the rise like this before. It then becomes something of an ineffectual countermeasure to try to tailor their structure and teachings to appease feminism, since they're contrasting entities and it's impossible for both to boost themselves through shared resources without skewing their original doctrine. Invariably, one of them will bear the burden of heavily altering their point of view in favour of conformity with the other party. This becomes even more twisted because the Catholic Church has many been the historical venue of vicious raids, unfair trials and corruption running riot wherever they were allowed to flourish. Now with them appeasing to feminism agenda we're supposed to believe this will assuage the historical ailments they've1 inflicted on our civilisation.

It's akin to listening to a senile aunt. "My heart weeps for the tragic loss of precious life, and I grieve the loss of those due to the lack of compassion of this world.

Enough with the compassion crap already! This is the same political entity that used to raise arms to do away with whatever opposition they ran into while making forays into new territory in the name of "progress".

Which leads me into the other problem: the Church’s ecumenism. This implied the ditching of their role to herald a life based on faith. Now a rift has begun to form from within the Church's upper hierarchy members, with some favouring third world immigration while some opposing the death penalty. But the real political powder keg rests on the Catholic Church in Europe, which purposefully enforces immigration from non-christian groups into traditionally Christian sites at the same time they exhort against xenophobia.

It's enough to make die hard churchgoers quit going to church.

Hong Kong 97 (snes videogame)



After seeing numerous games about the withdrawal of a group from the authority of a state and the subsequent transfer of sovereignty to their former Union, I have concluded that most of them suck, whether they be evil businesses plotting to wipe out a country's entire population, the deployment of murderous agents to carry out the equally gruesome duty or the resulting fracas being the main plot of a misbegotten game. Unfortunately for the elements populating this game, all three happened in a terrible unison. Things do not bode well for the target audience (if there ever was any).



Hong Kong 97 is a 1995 game by HappySoft, a homebrew game company for the SNES. A game designed through means that many would consider criminal. The in-game plot involve the return of Hong Kong to their rightful sovereign state, the People's Republic of China after years under the rule of the Brits. This took place in 1997, at the same time that crime rates were on the rise. This was pegged to the fact that people from the Chinese mainland started to mass immigrate to the tiny nation, forcing the local government to cast about for a solution. They do find one in the hope of using the services of Chin (Jackie Chan in his Wheels on Meals persona). He makes for the stricken country with one instruction only: to eliminate all 1.2 billion people of China. The plot alone is enough to make the game atrocious enough. But Chinese's hubris won't allow them to make light of the situation. They have been overseeing the whole situation all along and have plotted to offset the scheduled mass killing with a lethal weapon of their own: the resurrection of "Tong Shau Ping" (actually played by Deng Xiaoping). Curious tidbit:

"When the game was released in 1995, Deng Xiaoping, said to be dead in the game, was still alive. However, he did die months before the handover, which is when the game's plot actually takes place."
http://en.wikipedia.org/wiki/Hong_Kong_97_%28video_game%29

Now on to gameplay.


Upon turning on the game a short rendition of I love Beijing Tiananmen plays relentlessly in a loop. They could have made the loop longer, but I guess that making it the way they did made it somewhat amusing. The voiced sample of this sung track also provides a worthy distraction from the threadbare tone of the game. It'd become unplayable if they had put on something else than this soundtrack. However, the game doesn't contain any sound effect, so making a sound test option would be redundant.




With the helpful addition of this tune, it's time to select which language to play the game in. At least the game offers 3 options for the linguistic savvy, although this might put people off a bit because the text in the English version contains some easy to catch flubs. I wasn't able to judge the textual quality in the Japanese and Chinese scripts, but if they're on par with their Anglicized counterpart, things would look gloomy for those wanting to practice either Japanese or Chinese (or both).


Next up is the storyline. The basic premise is the concern brought on by droves of people rushing in from the mainland. That would be China. So the government strikes a deal with the protagonist and off he goes. The action stage kicks off without any prompting whatsoever so if the player is careless he could easily have his ass handed to him. He is supposed to be ready to dodge awkward sprites of people, cars and bullets, sometimes in a wiggling pattern. The enemies' post-death animation comprises at times of something that I could not describe. It seems to be a bloody likeliness of something, but I was unable to discern further. Some enemies (using indefinite pronouns this often makes me uncomfortable, but this helps define the path that this game has taken so far) drop pellets of invincibility. That or instant death. Again, I was at a loss to differentiate one from the other. After defeating enough enemies, a boss battle takes place. The MS Paint-style severed head of (presumably) Deng Xiaoping. It's a hard boss battle and I couldn't vanquish him to find out what wondrous mysteries awaits me. Most likely, you'll die too, and then back to the tile screen you go. Then the big wheel turns.

Dismal Charnel extends its deepest sympathy and condolence to the victims, condemning the ruthless attack this game brought on the bereft families.

Listen to the soundtrack here.

Wednesday, 12 February 2014

Abraham Lincoln



Abraham Lincoln (Hodgenville, 12th february 1809 - Washington D.C., 15th april 1865_ was the sixteenth president of the United States. he served from 1861 until his untimely death in 1865. Lincoln was the first United States president to be murdered while serving office. He would eventually be considered one of the greatest presidents that country ever had. He was praised for his instance and leadership skills during the American Civil War, abolition of slavery, consolidation of national government and the modernisation of the economy.

Sunday, 2 February 2014

Materialism

Within the domain of philosophy, materialism comprises of the view that our existence is ruled by physical matter, although the term physicalism has been increasingly associated with this doctrine as it has been shown more often than not that matter itself re-arranges itself into forces and energy, earning itself the recognition of being one of the most prominent denizens in the universe. It is also true its roots can be traced back to Greek atomism, arising in the modern period in Hobbes's Leviathan. Another definition for materialism holds that it's the excessive desire for goods and wealth. This definition bears little resemblance to the philosophical use of the term, even though the lingering ambiguity is potentially exploited to stir up controversy against an undifferentiated materialism. This is also the meaning of the term which leads to a life unguarded of the evils that this world has to offer.

The term can be suitably employed to refer to the overall attitude or behaviour of attachment to material goods and the enjoyment derived of being in contact therewith. It also relates to similar pleasures attained from upholding monetary values whilst holding a complete disregard to anything that lies outside the grasp of those confined to a material realm. The unbridled possessing and hoarding of wealth is a character's trait typical of a materialist person ( in the pejorative sense of the term). in the arts scenario, materialism means an inclination to give things a realistic and sensual likeness so as to make them simulate life better.

Below is a neat passage which fitfully sums up the concept of materialism, explaining both the philosophical as well as its down-to-earth application by D.M. Armstrong from Oxford Companion of the Mind:

Classifications of theories are bad masters, but may be useful servants. In the following classification of the main theories of the mind–body relationship upheld by philosophers, it is to be understood that the positions sketched are 'ideal types' to which actually held positions may approximate in different degrees.

If we think of mind and body as two opponents in a tug-of-war, then we can distinguish among theories that try to drag body, and matter generally, over into the camp of mind; those that try to drag mind over into the camp of body; and those theories where an equal balance is maintained. This yields a division into mentalist, materialist (physicalist), and dualist theories.

It is convenient to begin by considering dualism. The major position here is Cartesian dualism, named after Descartes, the central figure in post-medieval philosophical discussion of the mind–body problem. For a Cartesian dualist the mind and body are both substances; but while the body is an extended, and so a material, substance, the mind is an unextended, or spiritual, substance, subject to completely different principles of operation from the body. It was this doctrine that Gilbert Ryle caricatured as the myth of the ghost in the machine. It is in fact a serious and important theory.

Dualist theories are also to be found in a more sceptical form, which may be called bundle dualism. The word 'bundle' springs from David Hume's insistence that, when he turned his mental gaze upon his own mind, he could discern no unitary substance but simply a 'bundle of perceptions', a succession or stream of individual mental items or happenings. Hume thought of these items as non-physical. A bundle dualist is one who dissolves the mind in this general way, while leaving the body and other material things intact.

Besides dividing dualism into Cartesian and bundle theories, it may also be divided according to a different principle. Interactionist theories hold, what common sense asserts, that the body can act upon the mind and the mind can act upon the body. For parallelist theories, however, mind and body are incapable of acting upon each other. Their processes run parallel, like two synchronized clocks, but neither influences the other. There is an intermediate view according to which, although the body (in particular, the brain) acts upon and controls the mind, the mind is completely impotent to affect the body. This intermediate view, especially when combined with a bundle theory of mind, is the doctrine of epiphenomenalism. It allows the neurophysiologist, in particular, to recognize the independent reality of the mental, yet acknowledge the controlling role of the brain in our mental life and give a completely physicalist account of the brain and the factors which act upon it.

Mentalist theories arise naturally out of dualist theories, particularly where the dualist position is combined with Descartes' own view that the mind is more immediately and certainly known than anything material. If this view is taken, as it was by many of the greatest philosophers who succeeded Descartes, it is natural to begin by becoming sceptical of the existence of material things. The problem that this raises was then usually solved by readmitting the material world in a dematerialized or mentalized form. Berkeley, for instance, solved the sceptical problem by reducing material things to our sensations 'of' them. Berkeley thus reaches a mentalism where the mind is conceived of as a spiritual substance, but bodies are reduced to sensations of these minds.

It is possible to combine Berkeley's reduction of matter to sensations with a bundle account of the mind. In this way is reached the doctrine of neutral monism, according to which mind and matter are simply different ways of organizing and marking off overlapping bundles of the same constituents. This view is to be found in Ernst Mach and William James, and was adopted at one stage by Bertrand Russell. The 'neutral' constituents of mind and body are, however, only dubiously neutral, and the theory is best classified as a form of mentalism.

Just as Cartesian dualism may move towards mentalism, so it may also move towards materialism. Surprisingly, Descartes' own particular form of the theory lends itself to this development also. Descartes was one of the pioneers in arguing for an anti-Aristotelian view of the material world generally and the body in particular. First, this involved the rejection of all teleological principles of explanation in the non-mental sphere. Second, it involved taking the then revolutionary, now scientifically orthodox, view that organic nature involves no principles of operation that are not already to be found operative in non-organic nature. Human and animal bodies are simply machines (today we might say physicochemical mechanisms) working according to physical principles.

A view of this sort naturally leads on to the suggestion that it may be possible to give an account of the mind also along the same principles. In this way, a completely materialist account of nature is reached, and so a materialist account of the mind.

The word 'materialism' sometimes misleads. The materialist is not committed to a Newtonian 'billiard-ball' account of matter. Keith Campbell has spoken of the 'relativity of materialism' — its relativity to the physics of the day. Materialism is best interpreted as the doctrine that the fundamental laws and principles of nature are exhausted by the laws and principles of physics, however 'unmaterialistic' the latter laws and principles may be. Instead of speaking of 'materialism' some writers use the term 'physicalism'.

Materialist accounts of the mind may be subdivided into peripheralist and centralist views. A more familiar name for the peripheralist view is behaviorism: the view that possession of a mind is constituted by nothing more than the engaging in of especially sophisticated types of overt behaviour, or being disposed to engage in such behaviour in suitable circumstances. Behaviourism as a philosophical doctrine must be distinguished from the mere methodological behaviourism of many psychologists who do not wish to base scientific findings upon introspective reports of processes that are not publicly observable.

Very much more fashionable at the present time among philosophers inclined to materialism is the centralist view, which identifies mental processes with purely physical processes in the central nervous system. This view is sometimes called central-state materialism or, even more frequently, the identity view. Unlike behaviourism, it allows the existence of 'inner' mental processes which interact causally with the rest of the body.

It remains to call attention to one important variety of theory intermediate between orthodox dualism and orthodox materialism. It is a 'one-substance' view, denying that minds are things or collections of things set over against the material substance which is the brain. But it does involve a dualism of properties, because brain processes, besides their physical properties, are conceived of as having further non-physical properties which are supposed to make the brain processes into mental processes. Such views may be called attribute or dual-attribute theories of the mind–body relationship. A theory of this sort could be said to be a variety of identity view, since it also holds that mental processes are identical with certain brain processes.

According to the doctrine of panpsychism, not simply brain processes but all physical things have a mental side, aspect, or properties, even if in a primitive and undeveloped form.

Although the dual-attribute view is important, it inherits the considerable difficulty and confusion which surrounds the philosophical theory of properties. There are many difficulties in giving a satisfactory account of what it is for a thing to have a property, and these difficulties transmit themselves to this sort of theory of the mind–body relationship.

(Published 1987)