martes, 9 de octubre de 2012

Connectivism VMT

 Verónica Brunasso - Magdalena di Lorenzo - Tatiana Zaldivar

Connectivism

Text 1 

http://projects.coe.uga.edu/epltt/index.php?title=Connectivism


Text 2

http://www.elearnspace.org/Articles/connectivism.htm

  



Text 1
Text 2
What is it?
El conectivismo está basado en el entendimiento y en la rápida alteración permanente de las cosas. Es importante distinguir la información relevante de la que no lo es, ya que ésta se encuentra en constante cambio. A su vez, es importante tener en cuenta cuándo la nueva información produce cambios en las decisiones ya tomadas.
El conectivismo es la integración de los principios explorados por el caos, es decir la conexión de todo con todo, la red, la complejidad y las teorías de auto-organización.


How is it different from others?
Lo que aporta el conectivismo, a diferencia de otras corrientes, es que la tecnología promueve en el sujeto una forma de procesar y aplicar la información muy distinta, lo cual lo hace más dinámico y proactivo.


El conductismo, el cognitivismo y el constructivismo no tratan de abordar los retos de conocimiento de la organización y transferencia.
A diferencia de las otras teorías, el conectivismo proporciona información sobre el aprendizaje de habilidades y tareas que son necesarias para que los alumnos puedan prosperar en la era digital.
Which are its principles?

-El aprendizaje y el conocimiento se encuentran basados en la diversidad de opiniones, de manera de enriquecer el aprendizaje. 
-El aprendizaje es un proceso de conectar fuentes de información especializados.

-El aprendizaje puede estar en dispositivos no humanos.

-La capacidad de saber más es más crítica de lo que se conoce actualmente.
-Para promover un aprendizaje continuo es necesario mantener las conexiones.
-En el conectivismo es muy importante tener la capacidad de detectar conexiones entre campos, ideas y conceptos.
-La información actualizada y precisa es la intención de todas las actividades de aprendizaje conectivista.
-El aprendizaje es un proceso que se da en un contexto cambiante, por lo tanto no se encuentra bajo el control del individuo.
-El aprendizaje, definido como conocimiento aplicable, puede encontrarse fuera de los individuos (dentro de una organización o una base de datos).
-Está centrada en la conexión de conjuntos de información y dichas conexiones permiten aprender en mayor medida.
-El punto de partida del conectivismo es el individuo.






Connectivism

Cecilia Cela - Analia Guerrero - Ma.Florencia Deluca

TEXT 1.

Connectivism as a learning theory:

Social Context and Connectivism
George Siemens, who is considered as the precursor of Connectivism defines his
theory as a learning theory for the digital age (Siemens, 2004). Therefore, readers may
consider the emergence of Connectivism in a societal context, characterized by the
creation of economical values through networking human intelligence, in order to create
knowledge based products (Floridi, 2008). Considering this new scenario, where
technology plies a significative role, the old industrial era’s structure is transforming into
a society where “The information technology revolution has transformed modes of doing
business, the nature of services and products, the meaning of time in work, and the
processes of learning”( Fenwick, 2001, p. 4).
This process of change is named Globalization and is defined by Finger (2005) in
Merrian, Caffarella & Baumgartner (2006) “as a movement of economic integration, of
cultural homogenization, and of technological uniformization” (p.11).In this context,
learning strategies and educational institutions are changing dramatically. Educational
institutions are becoming part of the market, selling knowledge as a product in a
competitive environment. Consequently, many students are coming to consider
themselves as customers rather than learners (Merriam, et al., 2006). This atmosphere
of change also involves what, how and where people are learning. As a consequence of
the global economy work practices require a different training and preparation (Merriam,
et al. 2006).The continually technological development is forcing workers to continually
update their knowledge and skills. This process is known as “long life-learning”.
During the last several decades, the offering of online programs has increased
dramatically. Online based education has contributed to expand the opportunities of
learning in formal, no formal and informal settings (Merrian et al. 2006). As a result, the
ways of learning are changing. Educational programs are using technologies as an
essential tool in a learning experience. The importance of technology is describes by
Merriam,et al., (2006) as “Technology is integral to the global economy and has
contributed to, if not caused, the shift to an information society, which is creating
dramatic changes in the workforce” (p. 26). Some people assume these changes are an
opportunity for developing their life career with more flexibility and entrepreneurship. On
the other hand, Fenwick (2001) describes the increasing of privatization, deregulation,
reduction of social supports and temporization of workers as a consequence of the
global changes in economics and technological fields.
Within this complex and often contradictory environment emerges the
Connectivism as a new learning theory. Following is offered a summary of the main
ideas elaborated by George Siemens and his supporters, and also some criticism about
Connectivism is included.
According to George Siemens his developer, Connectivism is a learning theory
which is contextualized in a digital era characterized by the influence of technology in
the field of education. Currently Siemens is the Associate Director of Research and
Development at the Learning Technologies Centre at the University of Manitoba in
Canada.
Siemens is an influential thinker on the topic of education and technology, and
most of his works are found on a variety of different web sites, such us
www.connectivism.ca, www.elearnspace.org, www.wikipedia.com among others.
According to Siemens (2004) “learning is a process that occurs within nebulous
environments of shifting core elements – not entirely under the control of individual”. In
addition, Siemens (2006) defines learning “as chaotic, continual, co-creation,
complexity, connected specialization, continual certainty”.
Connectivism defines learning as a continual process which occurs in different
settings including communities of practice, personal networks and work place task.
Siemens has defined the fallowing principles of Connectivism:
Learning and knowledge rests in diversity of opinions.
Learning is a process of connecting specialized nodes or information sources.
Learning may reside in non – human appliances.
Capacity to know more is more critical than what is currently known.
Nurturing and maintaining connections is needed to facilitate continual learning.
Ability to see connections between fields, ideas, and concepts is a core skill.
Currency (accurate,up – to - date knowledge) is the intent of all connectivist learning
activities.
Decision making is itself a learning process.
Choosing what to learn and the meaning of incoming information is seen through the lens of a shifting reality (2004).
Siemens (2004) suggests that Connectivism is also concerned with how
corporations are facing the challenge of management of knowledge, what resides in
databases which need to be connected with the right people at the right moment. This is
a crucial difference between Connectivism and traditional learning theories.

Fuente. http:// t4tl.wikispaces.com

TEXT 2.

What is connectivism?¿Qué es el conectivismo?

“At its heart, connectivism is the thesis that knowledge is distributed across a network of connections, and therefore that learning consists of the ability to construct and traverse those networks”.
Stephen Downes, What Connectivism Is.
Welcome to connectivism blog!
Let’s start with presentations. My name is Sebastián Thüer, I have a degree in Communication Science and I’m attending for doctorate in New Technologies and Communication at Malaga University (Spain). This blog is a space that born from the online course I’m doing about Connectivism and Connective Knowledge.
Connectivims is a theory about learning that, as says the quote above, proposes the basic activity of learning is construct networks thought nodes of information. The main connectivism theorists are George Siemens and Stephen Downes.
The metaphor of learning as a network is not new. As Siemens says, every new theory has roots in previous ideas updated to the actual context. The point is to know if these ideas are useful to build an explicative model that allows to know better the reality.
A interesting way to approach to connectivims is to compare it with other learning theories. Brenga Mergel (1998) has a paper where his quote Peeg Ermet and Tomoty Newby to make five questions the get the basis for a learning theory. The questions are:
  1. How does learning occur?
  2. What factors influence learning?
  3. What is the role of memory?
  4. How does transfer occur?
  5. What types of learning are best explained by this theory?
Property
Behaviourism
Cognitivism
Constructivism
Connectivism
How learning occurs
Black box—observable behaviour main focus
Structured, computational
Social, meaning created by each learner (personal)
Distributed within a network, social, technologically enhanced, recognizing and interpreting patterns
Influencing factors
Nature of reward, punishment, stimuli
Existing schema, previous experiences
Engagement, participation, social, cultural
Diversity of network, strength of ties
Role of memory
Memory is the hardwiring of repeated experiences—where reward and punishment are most influential
Encoding, storage, retrieval
Prior knowledge remixed to current context
Adaptive patterns, representative of current state, existing in networks
How transfer occurs
Stimulus, response
Duplicating knowledge constructs of “knower”
Socialization
Connecting to (adding) nodes
Types of learning best explained
Task-based learning
Reasoning, clear objectives, problem solving
Social, vague
(“ill defined”)
Complex learning, rapid changing core, diverse knowledge sources

 Fuente. http://conectivismo.com/2008/09/what-is-connectivism/


Propuesta de trabajo.

CONNECTIVISM
TEXT 1
TEXT 2
What is it?
Es una teoría del aprendizaje en función de la era digital.
Es una teoría del aprendizaje que propone actividades básicas de aprendizaje basadas en redes de pensamiento.


How is it differnt from others?
La diferecia con otras teorías del aprendizaje es que esta utiliza las innovaciones tecnológicas como herramientas de aprendizaje.
- El aprendizaje es considerado como estructurado y computacional basado en esquemas existentes y experiencias previas.
- El rol de la memoria es codificar, almacenar y recuperar.


Which are its priciples?
Sus principios se enmarcan dentro de una sociedad globalizada donde hay una formación diferente, por lo tanto es necesario actualiza constantemente conocimientos y habilidades.
Su principio fundamental es la reactualización de teorías anteriores de acuerdo al contexto social actual.

 

cindy victoria

 Sigue desafiando tus conocimientos.
Une las palabras claves con las definiciones correspondientes.

lunes, 8 de octubre de 2012

Weather and Climate

Cecilia Cela - Analía Guerrero - Mª Florencia Deluca.


What's the Difference Between Weather and Climate?

The difference between weather and climate is a measure of time. Weather is what conditions of the atmosphere are over a short period of time, and climate is how the atmosphere "behaves" over relatively long periods of time. 

When we talk about climate change, we talk about changes in long-term averages of daily weather. Today, children always hear stories from their parents and grandparents about how snow was always piled up to their waists as they trudged off to school. Children today in most areas of the country haven't experienced those kinds of dreadful snow-packed winters, except for the Northeastern U.S. in January 2005. The change in recent winter snows indicate that the climate has changed since their parents were young. 

If summers seem hotter lately, then the recent climate may have changed. In various parts of the world, some people have even noticed that springtime comes earlier now than it did 30 years ago. An earlier springtime is indicative of a possible change in the climate. 


What Weather Means 
Weather is basically the way the atmosphere is behaving, mainly with respect to its effects upon life and human activities. The difference between weather and climate is that weather consists of the short-term (minutes to months) changes in the atmosphere. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure, as in high and low pressure. 

In most places, weather can change from minute-to-minute, hour-to-hour, day-to-day, and season-to-season. Climate, however, is the average of weather over time and space. An easy way to remember the difference is that climate is what you expect, like a very hot summer, and weather is what you get, like a hot day with pop-up thunderstorms. 

Things That Make Up Our Weather
There are really a lot of components to weather. Weather includes sunshine, rain, cloud cover, winds, hail, snow, sleet, freezing rain, flooding, blizzards, ice storms, thunderstorms, steady rains from a cold front or warm front, excessive heat, heat waves and more. 



What Climate Means 
In short, climate is the description of the long-term pattern of weather in a particular area.

Some scientists define climate as the average weather for a particular region and time period, usually taken over 30-years. It's really an average pattern of weather for a particular region.

When scientists talk about climate, they're looking at averages of precipitation, temperature, humidity, sunshine, wind velocity, phenomena such as fog, frost, and hail storms, and other measures of the weather that occur over a long period in a particular place.

For example, after looking at rain gauge data, lake and reservoir levels, and satellite data, scientists can tell if during a summer, an area was drier than average. If it continues to be drier than normal over the course of many summers, than it would likely indicate a change in the climate.

Why Study Climate?
The reason studying climate and a changing climate is important, is that will affect people around the world. Rising global temperatures are expected to raise sea levels, and change precipitation and other local climate conditions. Changing regional climate could alter forests, crop yields, and water supplies. It could also affect human health, animals, and many types of ecosystems. Deserts may expand into existing rangelands, and features of some of our National Parks and National Forests may be permanently altered. 


Actividades:

Responde:
1) ¿Qué es el tiempo?
2) ¿Qué elementos influyen en el mismo?
3) ¿Qué es el clima?
4) ¿Por qué es importante estudiar el clima?


Verdadero o falso:
1) La diferencia entre tiempo y clima radica en que el tiempo son los cambios de la atmósfera en un período de tiempo corto. ____
2) En el tiempo influyen la temperatura, humedad, precipitaciones, nubosidad, el brillo, la visibilidad, el viento y la presión atmosférica. ___
3) En la mayoría de los lugares, el clima puede cambiar de un minuto a minuto, hora a hora, día a día y temporada a temporada.____
4) El tiempo es realmente un patrón promedio del clima, en un período de 30 años,  para una región en particular.___
5) Cuando los científicos hablan sobre el clima, que están viendo los promedios de los elementos del tiempo  durante un período de tiempo en un determinado lugar.___

Completa el siguiente cuadro comparativo:
                                               





Antarctic Animal Adaptations (Cindy Agüero - Ma. Victoria Conde)

Antarctic Animal Adaptations

Antarctica is a very harsh and extreme environment though is very rich in wildlife due to the very high productivity of the Antarctic Ocean during the summer months driven by long days providing abundant light and copious nutrients brought to the surface layers by the upwellings at the Antarctic Convergence.
Animals need to have a whole range of specializations to be able to take advantage of these conditions, those given here are those that are most relevant to living in Antarctica, there are many other adaptations of these animals.

Anatomical - Structures of the body.
Behavioural - The manner in which animals move and act.
Physiological - The functioning of the animal at levels from biochemical, to cellular, tissue, organ and whole organism levels.
Animal
Anatomical adaptationsBehavioural adaptationsPhysiological adaptations

Adélie penguin - more
Pygoscelis adeliae
One of the "classic" penguin species, the second most southerly after the Emperor. Breed in the far south, but leave it to head north with the onset of winter.
  Compact shape, low surface area to volume ratio to reduce heat loss  Very dense specialized feathersfor insulation on land, fat layer under the skin for insulation in the sea
  Short wings reduced to flippersfor swimming underwater  Backward pointing barbs on tongue to stop slippery prey escaping  Black above and white underneath makes it harder to see in the sea, and helps warming / cooling on land, back or front to the sun according to whether they are hot or cold
  Migrate north at the end of the brief summer  Arrive in the south early in the summer season, to take best advantage of the seasonal abundance of food
  Tobogganing sliding on their front while pushing with legs, saves a lot of energy in long journeys
  Build a crude nest of stones to lift the eggs above ground level to prevent chilling from melting snow in summer
  Gather at the ice edge in large groups before jumping in the sea in case of predators, increases individual survival chances
  Muscle has large amounts of myoglobin to hold extra oxygen that is used up during a dive
  A counter-current system in the legs means that the feet are kept just above freezing and operated by muscles in the legs via tendons, this reduces heat loss
  During a deep dive, the heart rate slows from 80-100 down to 20 beats per minute
  Able to cope with a high saline diet due to salt glands and kidneys that produce concentrated urine (like many seabirds, penguins can drink sea water and gain water)

Emperor penguin - more
Aptenodytes forsteriaa
Largest of all penguins by a considerable margin. Animals of the very deep south and the only large animal that remains in Antarctica in the depths of the long dark winter night.
  Large size retains heat - Emperors are twice the size of the next biggest penguin, the king, so are able to survive the winter fast and the extreme cold temperatures endured at this time
  Short stiff tail helps balance on land, forms a tripod with heels on ice to give the least contact area to prevent heat loss
  Chicks have soft down for insulation, this is a more effective insulator on land than the parents feathers, but of little use in the sea, they must moult before they can swim
  Highly specialized bird skeleton a highly upright gait, short neck, short legs and long body
  Powerful claws on the feet help to gain a grip on snow, ice or rock when emerging from the ocean or when tobogganing
  Huddle together in the winter to conserve heat, without this they wouldn't be able to survive the Antarctic winter  Unlike other penguin species, they are not aggressively territorial,hence the huddling (above)
  Breed during the depths of the Antarctic winter, so the chicks are large enough to become independent during the summer abundance of food
  No nest is made, eggs then chicks sit on the parents feet and covered by a fold of skin to keep them warm
  When the female lays her egg, it is passed over to the male, the female then goes to sea and will not return for an average of 115 days
 
  A complex heat exchange system allows 80% of heat in the breath to be recaptured in the nasal passages
  They can dive to a depth of 1,800 feet (550 meters) and hold their breath for up to 22 minutes, so are able to reach and exploit food resources that other birds can't reach
  The normal resting heart-beat is about 60-70 beats per minute (bpm), this goes up to 180-200 bpm before a dive as they load up with oxygen, as they hit the water, the rate drops to 100 bpm immediately slowing to 20 bpm for most of the dive  Males can make "milk" in the oesophagus which can be used to feed chicks in the winter before the female arrives back from fishing
  Males can fast for up to 100 days
Animal
Anatomical adaptationsBehavioural adaptationsPhysiological adaptations

Weddell Seal - more
Leptonychotes wedelli

The most southerly dwelling of all mammals. Live at the edge of pack ice wherever there is a breathing hole or tide crack.
  Fore and hind limbs developed into flippers for swimming  Smooth, streamlined shape to pass easily through the water
  A substantial blubber layer lies under the skin acting as insulation, so allowing the seals to swim indefinitely in frigid Antarctic waters down to -2C 
  Large eyes to help hunting prey under water and frequently under ice where light levels are very low
  Whiskers (vibrissae) that help the seals feel their way in the dark when catching prey
  Seals keep open breathing holes in the ice by rasping back and forth with their teeth, so allowing them to live further south than any other mammal
  They can swim large distances between breathing holes and cracks, finding the next hole using a form of sonar with high pitched sounds
  They avoid the "bends" when diving by exhaling first and allowing the lungs and air passages to collapse
  Males compete for underwater territories based around a breathing hole which gives access to females using the same breathing hole
  They flush fish out that are hiding in broken up ice by blowing bubbles into it
  Weddell seals can dive for over an hour, though 20 minute dives are more common. They can dive to 600m
  The "cost" of diving in terms of extra oxygen consumption is about 1.5 x the sleeping rate - this is much lower than other diving seals and birds
  The blood has high haemoglobin concentrations and can carry 1.6 times more oxygen than human blood  Weddell seal milk is one of the richest produced by any mammal,containing about 60% fat  The females mate shortly after giving birth, the embryo goes into a kind of hibernation for a few months so it is not born before the full year is up and it is the correct season

Antarctic Krill - more
Euphausia superba

A Crustacean member of the zooplankton, krill is a super-abundant organism about 4-5cm long that feeds on phytoplankton. Being unusually large for zooplankton they are eaten by just about anything and everything that comes across them
  Very fine filtering net or "basket" formed by 6-8 pairs of limbs that can capture phytoplankton down to 1µm (1 micrometer, a millionth of a meter), the smallest that there are, no other zooplankton of this size can do this
  Small bioluminescent organs are found on several places on a krill's body, they have a reflector at the back, a lens at the front and can be directed using muscles, the function is not fully known, it may be connected with schooling or matingFor this reason krill are sometimes called "light shrimp"
  Complex and highly developed compound eyes, one of the best visual structures in nature, though why this should be so in krill is  a mystery
  Swarming behaviour similar to schools of small fish as a defence against predators, such swarms can have up to 10,000 to 30,000 individuals per cubic meter of sea water
  In the winter and spring they are found beneath sea ice where they feed on algae growing on the under side of the ice which they rake off in a methodical manner like a lawn mower
  Rapid backwards escape reactionin common with many other crustaceans with a pronounced flattened tail or telson, they can flip it backwards several times in succession to escape from danger -this is called "lobstering"
  Usually krill stay in deep water during daylight hours and come to the surface at night, this helps them to avoid predators
  Can withstand long periods of starvation (up to 200 days) by using their muscle as a reserve, the krill shrink in the process, this happens over the winter months when the krill are under seasonal sea ice and there is little or no photosynthesis
  Despite very cold water temperatures, krill are highly active,backwards lobstering takes only 55 milliseconds from stimulus (optical) to triggering of the escape response
  Female Antarctic krill can lay up to 10,000 eggs at a time, they can do this several times in a season
Animal
Anatomical adaptationsBehavioural adaptationsPhysiological adaptations
 
Text "Antarctic Animal Adaptations"
http://www.coolantarctica.com/Antarctica%20fact%20file/wildlife/antarctic_animal_adaptations.htm


Luego de leer completa los casilleros libres con la información que recuerdes.