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An explanation of how to use an existing Connexions lens and the tags within a lens to further focus on the lens contents.

Using public lenses

The best way to learn about how to use or view lenses is to get a little bit of understanding and then practice (play around with several lenses). We have a public member’s list lens that was created specifically for this module. We will go through the general understanding of using a lens and then direct you to the web site for some play time.

Public Member Created Lens: Busbee’s Computer Science Lens

Parts of a Lens

The parts and general information about a lens are as follows:

  1. Lens Name
  2. Icon – Not all lenses have icons
  3. Lens Creator – You can click on this link and it will show the creator’s profile.
  4. Description – The creator’s comments about the lens. Usually includes the purpose.
  5. Creator’s Web Page Link – Not all lenses have web page links
  6. Items Selected by the Creator – This is a list of the Connexions modules and collections that the creator has associated with this lens.
  7. How many items show per page – adjustable by the user (or viewer) of the lens
  8. Sort sequence – Usually in “Type” sequence which places the “Selected Content” (Item 6) with collections first and modules second; each group sorted alphabetically. The user (or viewer) of the lens may choose from the following sort sequences:
  • Popularity
  • Language
  • Revision Date
  • Title
  • Type
  • Rating – As rated by viewers of the modules. This feature was added during 2009 and may not be useful until more people rate modules within the Connexions repository. If rated by several people, it can be used as a measure of quality .
  • View – “Lens” is the normal default. The user (or viewer) may choose from the following views which always show the title and author, plus:
  • Lens – shows the tag information and comments; if they exist
  • Detail – shows the author’s institution, keywords and summary for the module or collection; if they exist
  • Compact – shows only the title and author
  • Statistics – shows total view, views per day, percentile ranking and raw module count ranking. Since there are over 15,000 modules and collections, any raw ranking of 1,500 or lower would be in the top 10% of materials viewed. The percentile ranking may be more useful because it will not be distorted over time. As the Connexions repository grows (let’s say to 30,000 modules and collections) the raw ranking of 1,500 or lower would represent the top 5% of the repository.Statistics might be a measure of quality , but you should consider that usage (forced upon students using a collection as a textbook) and quality are not necessarily interchangeable.
  • Tags Box – By the representation of their size (larger meaning more items in the lens have that tag word) the tags box contains tag words as used by the creator of the lens as they select material for the lens. The creator does not have to use tags, but most lenses have tags. As the creator of a lens adds modules or collections to the lens, they are given the opportunity to place tags (additional words that can be used to further focus on lens content) and comments. The tags are useful in that the user (or viewer) of the lens can see a more precise focus on lens contents. An Example follows:
The use of a tag to further focus a lens

Other ways to select a lens

Member profile

Anywhere on the Connexions web site when you see “by:” it refers to the author or creator of the item. Several examples are:

  • Author: (the word “by” is not used)
  • Module by:
  • Course by:
  • Lens by:

The name that appears to the right is a link to the Member Profile for that author/creator. When you click on it you see the member’s profile and information about any lenses that they have created.

A Member’s Public Lenses

Lenses box

Lenses Box – normal usage

Lenses Box – Additional focus using a tag

Practice using lenses

The best way to understand how to use lenses is to practice or play with them. A suggestion is to practice all of the items in this module. You can do that by starting at the “Lenses” tab of the Connexions web site.

The direct link to Busbee’s Computer Science Lens is: (External Link)

Questions & Answers

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
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
Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
what school?
biomolecules are e building blocks of every organics and inorganic materials.
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Source:  OpenStax, Effectively using and creating connexions lenses. OpenStax CNX. Feb 24, 2010 Download for free at http://cnx.org/content/col11186/1.1
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