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On the OER Commons homepage , the “Top 30 Tags” are located on the right side of the page. (See Figure 1.) Clicking on any tag displays a results page with OER items tagged with that particular keyword. To view all available tags in OER Commons, click on the “View all tags” link located in the Top 30 Tags box. Viewing all tags shows the collection of all tags on a site, which is called a “ TagCloud .” The size of the word indicates its popularity. For a visual example of OER Common’s TagCloud, see Figure 2.

Figure 1. A visual representation of the Top 30 Tags in OER Commons. This list changes; when you view it, different tags may be shown.

Figure 2. A visual representation of OER Common’s TagCloud. This list also changes as people add more tags. And as more people use a particular tag, its font size increases.

Tags and metadata

Metadata is data that provides information about other data. When you submit your materials to OER Commons, you provide information in the submission form such as the title, author name, type of material, keywords, and tags. This information becomes attached to that material. This information is called metadata. When someone conducts a search, the search engine uses the metadata to find and retrieve the material.

Additionally, when you provide information about others’ materials by rating, reviewing, and tagging the material, you are providing metadata that becomes attached to that material.

The metadata you provide in your own materials as well as the information you provide by tagging, rating, and reviewing of others’ materials enriches the content by giving descriptive information that assists in searching and re-use of the materials.

Read more about how OER Commons uses metadata for searching.

Activity: tag an oer item

  • Go to OER Commons . You must be logged in to do this activity.
  • Locate any OER item by searching with a keyword or clicking on a tag.
  • After finding an OER item, click on its title. You should see a page similar to the one in Figure 3.
  • Locate “Tags for This Item” on the right side of the window. (See an example in Figure 3.) Click on “Add Tags.”
  • The page “Add Tags” appears. Add your own tag or select a tag from the list below. Each tag should be on its own line.(Figure 4.)
  • When you’re done, click the “Save” button.
  • Your tag(s) will then appear in “Tags for this Item.”

Figure 3. A visual representation of the area where you add tags. When you tag an item, others will see the tag when they view the item.

Figure 4. A visual representation of an example of the “Add Tags” page.

Oer stories from around the world

A music teacher tags material she found to give it more meaningful context.

Coming full circle with the OER process: 2 chemistry teachers use the same activity.

Your experience using open and freely shared course-related materials is valuable in the reuse and evolution of the materials. Tell us your story ; how you’ve used these materials and how their use has impacted how you teach or learn.

Rating provides a lens

After using an item in OER Commons, consider sharing your experience by rating it. When you rate items you have used, your rating information becomes attached to the item and provides another lens for others as they make decisions to use it.

Activity: rate an oer item

  • Go to OER Commons . You must be logged in to do this activity.
  • Locate any OER item by searching with a keyword or clicking on a tag.
  • After finding an OER item, click on its title. You should see a page similar to the one in Figure 3.
  • Click on the link “Rate Item.”
  • A drop down menu appears.
  • Rate the item by choosing a number.

Items that you rate are attached to the item as well as being placed in “My OER Portfolio.” Learn more about “My OER Portfolio.”

Reviewing provides even more understanding

Just as rating an OER item contributes to the richness of its information, reviewing it provides even more understanding. There are 3 categories on the Review Form:

  • Use
  • Overall Quality
  • Usefulness and Recommendations for Future Use.

Each category asks questions that help to provide a deeper understanding of how the material can be used. Your feedback gives others ideas on how they might implement the OER item.

Activity: review an oer item

  • Go to OER Commons . You must be logged in to do this activity.
  • Locate any OER item by searching with a keyword or clicking on a tag.
  • After finding an OER item, click on its title. You should see a page similar to the one in Figure 3.
  • Under the title, click on the link “Review Item.”
  • The page “Add Review” appears.
  • Review the item by completing this form as appropriate.
  • Click the “Save” button.

Your reviews are attached to the item as well as being placed in “My OER Portfolio.” Learn more about “My OER Portfolio.”

For more information

The following resources have been selected to provide more information on concepts we covered in this module.

Other modules in this course include …

This module showed how you can begin contributing to OER Commons by tagging, rating, and reviewing materials you have used. The next module, “ My OER Portfolio ,” will show how using your OER Portfolio personalizes your use of OER Commons and gives you quick access to materials you have saved.

For more information about OER Commons, send an email to info@oercommons.org .

Use this feedback form to send OER Commons general feedback, a feature request, or information about a bug/problem you had using the site.

To see the ever-growing list of the new content providers and contributors to OER Commons, visit the Content Providers page often. You can be one too!

“quotable quote”

The form in which information is coded has, itself, an inescapable bias.

Postman, N. (1988). Conscientious Objections. New York: Vintage Books.

About this module

The "How Tos" of OER Commons is a set of learning modules evolving out of the development of OER Commons ( (External Link) ), a teaching and learning network for free-to-use educational materials from around the world, created and licensed by the Institute for the Study of Knowledge Management in Education (ISKME).

Course contributors are Lisa Petrides, Amee Godwin, and Cynthia Jimes, and online learning consultant, Patricia Delich.

For more information, visit (External Link) and (External Link) .

Questions & Answers

how can chip be made from sand
Eke Reply
are nano particles real
Missy Reply
Hello, if I study Physics teacher in bachelor, can I study Nanotechnology in master?
Lale Reply
no can't
where we get a research paper on Nano chemistry....?
Maira Reply
nanopartical of organic/inorganic / physical chemistry , pdf / thesis / review
what are the products of Nano chemistry?
Maira Reply
There are lots of products of nano chemistry... Like nano coatings.....carbon fiber.. And lots of others..
Even nanotechnology is pretty much all about chemistry... Its the chemistry on quantum or atomic level
no nanotechnology is also a part of physics and maths it requires angle formulas and some pressure regarding concepts
Preparation and Applications of Nanomaterial for Drug Delivery
Hafiz Reply
Application of nanotechnology in medicine
has a lot of application modern world
what is variations in raman spectra for nanomaterials
Jyoti Reply
ya I also want to know the raman spectra
I only see partial conversation and what's the question here!
Crow Reply
what about nanotechnology for water purification
RAW Reply
please someone correct me if I'm wrong but I think one can use nanoparticles, specially silver nanoparticles for water treatment.
yes that's correct
I think
Nasa has use it in the 60's, copper as water purification in the moon travel.
nanocopper obvius
what is the stm
Brian Reply
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
How we are making nano material?
what is a peer
What is meant by 'nano scale'?
What is STMs full form?
scanning tunneling microscope
how nano science is used for hydrophobicity
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
what is differents between GO and RGO?
what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.? How this robot is carried to required site of body cell.? what will be the carrier material and how can be detected that correct delivery of drug is done Rafiq
analytical skills graphene is prepared to kill any type viruses .
Any one who tell me about Preparation and application of Nanomaterial for drug Delivery
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
The nanotechnology is as new science, to scale nanometric
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
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Source:  OpenStax, The "how tos" of oer commons. OpenStax CNX. Oct 16, 2007 Download for free at http://cnx.org/content/col10468/1.4
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