wider context

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Information about wider context

Published on June 19, 2007

Author: Arkwright26

Source: authorstream.com

Learning Objects in a Wider Context:  Learning Objects in a Wider Context Stephen Downes National Research Council Canada CADE 2003, June 9, 2003 Outline:  Outline The Learning in Learning Objects Describing Learning Objects Learning Object Semantics The Grammar of Learning Objects Learning Environments 1. The Learning in Learning Objects:  1. The Learning in Learning Objects What are learning objects? Sterile, stand-alone, modular? Must contain learning intent, objectives? Where is the learning? Is the learning in learning objects? Or Is the learning in how we use learning objects? How We Use Learning Objects:  How We Use Learning Objects Is this your picture…? Learning objects are like pre-built lessons We search for learning objects and arrange them into classes and courses In order to contextualize learning, we edit or revise their content We package the result and place it in WebCT or on a CD-ROM Rethinking Learning Objects:  Rethinking Learning Objects The model: learning objects are bits of instruction strung together to form a course But this model is not right, indeed, it cannot be right: If learning objects narrowly defined, they cannot be re-used But if learning objects broadly defined, they cannot be string together (Wiley) Learning as an Emergent Property:  Learning as an Emergent Property Composition: the whole is greater than the parts – bricks, atoms, pixels The content is not contained in the parts, it emerges from the combination of the parts The use of learning objects consists not in stringing them together, like a narrative, but in arranging them, like (a painting, an orchestra, a sand castle, … ) 2. Describing Learning Objects:  2. Describing Learning Objects How it works: you get a bunch of learning objects and put them in a database You then tag these objects using (say) IEEE-LOM or CanCore The content of these tags – typical age range, classification, interactivity – are used as parameters in a search Learning Object Metadata:  Learning Object Metadata We think of metadata as describing the contents of a learning object, like the label on a can, and that’s partially true. But… Learning Object metadata doesn’t describe an object, it describes a use of an object That is why we need multiple metadata schemes, because we have multiple uses Example: Classification:  Example: Classification Classification is a classic example. What is the topic of a learning object? That depends on which classification scheme you use… Is this a picture of: Hands? Lines? A runner? Start position? Vagueness? Who Uses Learning Objects?:  Who Uses Learning Objects? Overwhelmingly, the picture we see is one where the learning object designer (or an agent) creates tags for learning objects Overwhelmingly, the picture we see is one where an instructional designer (or maybe an instructor, if they have the time) brings learning objects together Breaking the Chain:  Breaking the Chain The creation of metadata (aside from obvious properties) must occur in the use of a learning object by many people Analogy: the aggregation and commenting on news and other items by bloggers These comments form part of the description of the object, aid in searching 3. Learning Object Semantics:  3. Learning Object Semantics Question: Did Yeats use reusable objects? (I guess these would be poem objects…) by taking, say, a Shakespeare sonnet? Intuitive answer: no he did not – each poem was an original creation But the correct answer is: yes, Yeats did use reusable objects Reuse in Language:  Reuse in Language There are two levels of reuse in Yeats: First, Yeats used the same set of 26 letters Second, Yeats used the same set of (say) 50,000 words The process: take the words, put them in a repository (called a dictionary), reuse as necessary Meaning in Language:  Meaning in Language With some very few exceptions, the meaning of a word is not contained in the word itself Nor can the meaning of a sentence be found by studying the individual words The meaning is found in the relation of the words to each other and to external objects Example: ‘calf’ ‘Words in a Language’:  ‘Words in a Language’ People should stop thinking of learning objects as though they were classes or lessons or some such thing with built-in intent It is preferable to think of them as a greatly enhanced vocabulary that can be used in a multidimensional (as opposed to merely linear) language 4. The Grammar of Learning Objects:  4. The Grammar of Learning Objects Abundant evident that such a language exists on the internet (in the domain of multi-user multi-media online communication) Artifacts include chatrooms and IM, online games, blogs, hyperlinks, avatars… Characteristics of the Language:  Characteristics of the Language Two major differences from text-based language: Transmission  Immersion Description  Experience Words are abstractions, pale reflections of a much deeper experience (hence, eg., tacit knowledge…) Structure of the Language:  Structure of the Language Old: objects are placed in a sequence with (maybe) limited branching – limited choices, need for uniformity, static, single focus New: objects are placed in an environment – multiple choices, room for diversity, dynamic, multiple points of focus The Wider Context:  The Wider Context Linear  Multi-threaded Content Delivery  immersive, interactive Static, paced  dynamic, unpaced Demonstration  inference Learning objectives  learner goals Motivation  desire Using Learning Objects (1):  Using Learning Objects (1) Old: Static, paced Objects are organized in a predetermined order – the idea of succession The delivery or invocation of objects is determined by time or sequence This delivery is defined by an instructional designer or teacher UsingLearning Objects (2):  UsingLearning Objects (2) New: dynamic, unpaced Objects are not ordered; each persists independently of the others The delivery ore invocation of objects is triggered by events The use of learning objects is based on learner choices 5. Learning Environments:  5. Learning Environments The attempt to organize bits of instruction into neatly packaged courses is a mistake The use of learning objects is best characterized as placing (access to) objects in an environment The design of the environment consists in the creation of a context of use Types of Learning Environment:  Types of Learning Environment Simulation or artificial environment, such as a game Multi-threaded stream of discourse, such as a blog or newsletter Dynamic interactive knowledge base such as a wiki Embedded learning, such as workplace support, smart artifacts The Integrated Environment:  The Integrated Environment Like the student’s desktop, only more so Provides access to tools (simulations, blogs, wiki, support) Is itself immersed in some wider real-life context or environment Learning occurs in the real world, learning design supports this learning Learning With Learning Objects:  Learning With Learning Objects Continuous, not interrupted Task or project oriented, not subject oriented Global, not local Dynamically organized, not statically predetermined Learner driven, not instructor driven Some Examples:  Some Examples OLDaily – newsletter / blog The Budget simulator Student newspaper Smart fishing rod Beyond Learning:  Beyond Learning Historically, we have artificially separated learning from life (or learning from work) This line, in a learning object environment, becomes blurred We may begin in a simulated environment, but this eventually becomes the real-world The learning never ends… More Information:  More Information Stephen Downes http://www.downes.ca stephen@downes.ca

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