The Evolution and benefits of School Technologies By Priyank Shah, Richard Keegan, Sarah NeSmith, and Megan Rall Group 7
Chalk Boards vs. Projectors Chalk Boards Framed with wood to keep from breaking, and marked on with shards of slate Used in the 19 th century to save paper In the 1990s potential health risks posed by chalk dust prompted the replacement of many blackboards with whiteboards Projectors Projectors began to be widely used in schools in the late 1950s and early 1960s. Teaching materials can be preprinted on transparencies, which can be written on and reused. Today projectors are slowly being replaced by computer projection systems, interactive whiteboards, etc. due to technology advancement in society.
Pros and Cons Chalk Board – To own and maintain would cost $25 – Chalk Dust can cause: Nausea, Vomiting, Diarrhea, Constipation, Stomach pain, and Eye irritation NauseaVomiting DiarrheaConstipation Stomach painEye irritation White Board – To own and maintain a white board would cost $50 – Medical symptoms that could be caused by dry markers are dangerous Medical symptoms – Markers may dry out faster if not kept them close Document Camera – Costs about $2,691.00 – Better clarity then the Overhead projector – Not good for mobility and is heavy LCD Projector – Costs about $328 – Learn More Learn More Overhead Projector – To own and maintain would cost $213.43 – For more information For more information
Notebooks Transfer into Computers 1780 – The teacher is the primary manager of instruction and assessment in a single classroom. 1946 – First vacuum tube-based computers developed but used only for the war effort. Notebooks and paper are the main classroom component. 1954- General electric is the first business to order a computer. 1992- Schools begin using gopher servers to provide students with on-line information 1994- Most U.S. classrooms have at least one PC available for instructional delivery 1995- The internet and world wide web gains popularity with the public 1997-2007- More computers are stored in schools. Educators store graphic, video, and sound files for educational applications
Hardcopy vs. Electronic Copy A study by Neşet DemirciNeşet Demirci – There was not a statistical difference in what students preferred – No difference in the scores that the students received on both kinds of assignments. Costs – Electronic devices are higher in cost than paper and pencil, but not in the long run – This article points out the security, and ease of access with electronic file storage. This information was found on this website:article Palm Pilots – The Palm Pilot is lightweight, and has many functions that can be used in the classroom – the average K-12 student will save two trees a year by doing their homework on a Palm Pilot.
Creators Priyank Shah (Slides 1-4) Sarah NeSmith (Slides 6-8) Richard Keegan (Slide 8) Megan Rall (Editor)
Links Chalkboards VS Projectors By Priyank Shah http://www.wisegeek.com/what-is-the-history-of-the-chalkboard.htm http://en.wikipedia.org/wiki/Overhead_projector http://www.amazon.com/Board-Dudes-Chalk-Inches-9184BDUA- 6/dp/B0018N72T0/ref=sr_1_2?ie=UTF8&qid=1327185023&sr=8-2 http://www.amazon.com/Board-Dudes-Chalk-Inches-9184BDUA- 6/dp/B0018N72T0/ref=sr_1_2?ie=UTF8&qid=1327185023&sr=8-2 http://www.amazon.com/Dry-Erase-Board-Melamine-Satin-Finished- Aluminum/dp/B000J0CARW/ref=sr_1_2?s=office-products&ie=UTF8&qid=1327186015&sr=1-2 http://www.amazon.com/Expo-6-Piece-Original-Marker-Starter/dp/B00006IFIV/ref=pd_sbs_op_3 http://www.amazon.com/Apollo-Horizon-Overhead-Projector- V16000M/dp/B00006ID1Q/ref=sr_1_1?s=office-products&ie=UTF8&qid=1327186638&sr=1-1 http://www.amazon.com/Apollo-Overhead-Projector-Output-VA-DYS- 6/dp/B0006HUXZO/ref=sr_1_3?s=office-products&ie=UTF8&qid=1327186727&sr=1-3 http://www.amazon.com/Apollo-Write--Transparency-Inches-VWO100C- BE/dp/B001GXD2A0/ref=sr_1_1?s=office-products&ie=UTF8&qid=1327186790&sr=1-1 https://www.schooloutfitters.com/catalog/product_info/pfam_id/PFAM5151/products_id/PRO13713?sc _cid=amazon.com_ELM-1301 http://www.amazon.com/ViewSonic-PJD5123-Projector-120Hz- Lumens/dp/B004UG3BQK/ref=sr_1_1?s=pc&ie=UTF8&qid=1327892538&sr=1-1 http://www.rightdiagnosis.com/c/chemical_poisoning_chalk/signs.htm