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    About Findability

    As 21st century education adapts to its online future, the edu sector is learning to work under the network laws that make the best study knowledge findable. Findability emerges naturally from educational resources embedded in a network when these 7 elements are present.

    Digital - Educational materials that are printed are outside of the digital online commons where findability arises.

    Unbundled - Findability works bests with the smallest pieces of content, so bundles like curricula, courses, and PDFs stifle findabiity.

    Open - To be findable, content must be open in the one Web global commons, with no barriers of cost, subscription, or copyright.

    SEOed - Search Engine Optimization with keywords and linking attracts search engine spiders and boosts rankings on search engine results pages.

    Juiced - Webpages getting higher search engine page ranks from links by educators judging their content as superior.

    Networked - Nodes of learning content are syndicated (RSS), virally spread, and connected into social networks.

    Mobilized - Nodes of learning content are becoming findable to millions, and potentially billions, of new learners by being optimized for mobile phones.

    The learn nodes posted on this blog are models that show how you can increase findabiity for open educational resources.

  • The LEARN NODE is a tool for creating findability

    The illustration below shows a learn node, which you can use as an educator to make webpages more findable. The top little circles illustrate links out to content nodes related to the subject of the large circle. Bottom left, experts connect to the node affirming its quality - giving it juice. Bottom right, a student connects to the node to learn the subject of its content.

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Sep
01

Learn node: Materials science: mixture or solution

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The sketch in this learn node is from a course taught at MIT. You can virtually sit in on the lectures from the course by clicking this link: Fundamental Concepts of Material Science. The above sketch is from page 7 of lecture L2 PDF that you can download from the list you will get when you click the link. The sketch teaches us:

Mixture: Inhomogeneous multi-phase system where the components are not mixed on a molecular level.
Solution: Homogeneous system, components are mixed on a molecular level.

The difference between a solution and a mixture is a basic idea that the illustration above gives us � so that we can go on in our own learning to other concepts linked to the subject. The PDF of the lecture is an excellent place to move on in this learning; it has 13 pages of basics. The elemental new power of learning in the network ecology online is a matter of grasping a node like this one about “mixture or solution” and linking to related nodes to build concepts and experience thinking.

MORE LEARN NODES about mixtures and solutions from Rice University: “The word mixture can be defined as a heterogeneous association of substances that cannot be represented by a single chemical formula. This definition does not limit mixtures to solids mixed with liquids, nor is every mixture considered to be a solution. . . .”

More learn nodes at: learnodes.com


Filed under chemistry, engineering, general science on September 1, 2007 - No Comments
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