Module 2: Tetrad
Overhead Projector
Enhances - Supplement oral presentations with the ability to display a horizontal piece of paper onto a wall, white surface or screen large enough for the whole audience to see. Eliminates the amount of handouts required to be printed and distributed. Saving time by eliminating the time it takes to write the information on the board.
Obseletes - Slide projector, slides and storage of the slides.
Retrieves - An episcope which was an optical device for projecting flat opaque images as well as 3 dimensional objects like leaves, on to a screen.
Reverses – LCD Projector and interactive whiteboard.
LCD Projector
Enhances- Can be directly linked to computer, VCR’s, speakers, and DVD equipment allowing for the theatre effect in the classroom. Saving time by eliminating the time it takes to write the information on the board.
Obseletes - Overhead projector, transparencies, special ink pens, and storage of the transparencies.
Retrieves – The overhead projector being able to copy textbook pages on transparency and display on the screen.
Reverses – New technology that costs less, smaller and wireless.
References
Episcopes and epidiascopes. Retrieved from http://www.luikerwaal.com/newframe_uk.htm?/epidia_uk.htm
Hollister, S. (2010). OO HD wireless projector concept reaches for the stars, almost grabs 'em (video). Retrieved from http://www.engadget.com/2010/03/10/oo-hd-wireless-projector-concept-reaches-for-the-stars-almost-g/
Lynne,
ReplyDeleteReally good job. You think like a teacher. My tetrad was very brief. I am at a disadvantage being I have never been a classroom teacher and hardly use these technologies.
Jeannine,
ReplyDeleteThank you for your comments. You did a great job on your tetrad. Have a super week :)
Lynne,
ReplyDeleteI also included the progression from the overhead projector to the LCD projector. Another technology that could replace our standard LCD projectors would be the holographic projector with 3D imaging that would also have the regular 2D projection capability. Remember CNN coverage of the election of 2008. Check out this article: http://arxiv.org/pdf/1006.0846
Great job!
Lynne,
ReplyDeleteYour blog gives you the chance to talk to the world about your thinking on the application of the tetrad model to these technologies and then get feedback from your peers and other global readers. This is a great opportunity to be a prolific writer.
Dr. Toledo
Thank you for your comments.
ReplyDelete