“CHILDRENS NATURE REQUIRES VISIBILITY.” Ushinskiy K.D. Gerkushenko Georgiy PhD, associate professorRus s i an Federati on, Volgograd State Techni cal Uni versi t y, Departmen t of "Compute r -ai ded desi gn and search engi ne desi gn" 23.11.2010 C hi n a , C ha n g c hu n , N E N U
An interactive whiteboard (IWB), is a large interactivedisplay that connects to a computer and projector. Aprojector projects the computers desktop onto theboards surface where users control the computer using apen, finger or other device. The board is typicallymounted to a wall or floor stand.They are used in a variety of settings, including classroomsat all levels of education, in corporate board rooms and workgroups, in training rooms for professional sports coaching, inbroadcasting studios and more.
IWB may use one of several types of sensingtechnology to track interaction on the screensurface: Resistive; Electromagnetic; Camera-based (optical). Infrared optical; Laser; Ultra-sonic;
Resistive — Resistive touchscreens are composed of two flexible sheets coated with a resistive material and separated by a microthin air gap. When contact is made to the surface of the touchscreen, the two sheets are pressed together, registering the precise location of the touch. This technology allows one to use a finger, a stylus, or any other pointing device on the surface of the board. Active Electromagnetic Board — These interactive whiteboards feature an array of wires embedded behind the board surface interacts with a coil in the stylus tip to determine the (X,Y) coordinate of the stylus. Styli are either active (require a battery or wire back to the whiteboard) or passive (alter electrical signals produced by the board, but contain no batteries or other power source). In other words, there are magnetic sensors in the board that react and send a message back to the computer when they are activated by a magnetic pen. Passive Electromagnetic Board - In contrast to a active electromagnetic board this one does not contain the sensing technology in the board itself, but in the pen. Tiny magnetic fibers are embedded in the whiteboard and form a pattern that a electromagnetic coil in the pen is able to sense. Therefore the pen is able to calculate its location on the whiteboard ans sends this information to a computer. Capacitive — Just like the electromagnetic type, the capacitive type works with an array of wires behind the board. In this case however the wires interact with fingers touching the screen. The interaction between the different wires (laminated in a patented X- and Y-axis manner) and the tip of the finger is measured and calculated to a (x, y) coordinate.
Infrared light curtain — When pressed to the whiteboard surface, the finger or marker sees the infrared light. Software then manipulates the information to triangulate the location of the marker or stylus. This technology allows whiteboards to be made of any material; with this system no dry-erase marker or stylus is needed. Laser light curtain — An infrared laser is located in each upper corner of the whiteboard. The laser beam sweeps across the whiteboard surface—much like a lighthouse sweeps light across the ocean—by using a rotating mirror. Reflectors on the stylus or marker reflect the laser beam back to the source and the (X,Y) position can be triangulated. This technology may be combined with a hard (usually ceramic on steel) surface, which has long life and erases cleanly. Markers and styli are passive, but must have reflective tape to work. Frustrated total internal reflection — Infrared light bounces within a flexible and transparent surface. When the surface is deformed through a finger press the internal reflection is disrupted and the light escapes the surface where it is then sensed by cameras. Image processing software turns the light spots observed by the cameras into mouse or pointer movements. Camera Pen and Dot Pattern – These interactive whiteboards have a microscopic dot pattern embedded in the writing surface. A wireless digital pen contains an infrared camera that reads the dot pattern to determine the exact location on the board. The digital pen uses this pattern to store the handwriting and upload it to a computer. The accuracy is high since the coordinates are usually fixed at about 600 dots per inch. With the electronics in the pen, the whiteboard is passive (containing no electronics or wiring). This is licensed as Anoto technology.
Ultrasonic only — These devices have two ultrasonic transmitters in two corners and two receivers in the other two corners. The ultrasonic waves are transmitted by the whiteboard surface. Some little marks in the whiteboard borders create reflecting waves for each ultrasonic transmitter at different and recognizable distances. Touching with a pen or even the finger in the whiteboard causes these point waves to be suppressed, and the receivers communicate the fact to the controller. Hybrid Ultrasound and Infrared — When pressed to the whiteboard surface, the marker or stylus sends out both an ultrasonic sound and an infrared light. Two ultrasonic microphones receive the sound and measure the difference in the sounds arrival time, and triangulate the location of the marker or stylus. This technology allows whiteboards to be made of any material, but requires a suitably adapted active dry-erase marker or stylus. Wii Remote IWB — A Wii Remote is connected to a computer through its Bluetooth connection capabilities. Using open-source software and an IR-Pen (a pen made with a momentary switch, power source and an Infrared Led) any surface (desk/floor/wall/whiteboard/LCD) can be turned into an Interactive Whiteboard. The Wii Remote has a very accurate Infrared Light tracking camera. Once calibrated, the Wii Remote detects a mouse click at the screen location of the IR-Pen. The Wii remote was first adapted for use as an interactive whiteboard by Johnny Chung Lee.
Answer the questions:1. What is the most important factor of using White board in the classroom?2. What are three unique features of the Smart Board technology?---
Operating any software that is loaded onto the connected PC, including web browsers and proprietary software Using software to capture notes written on a whiteboard or whiteboard-like surface Controlling the PC (click and drag), markup (annotating a program or presentation) and translating cursive writing to text (not all whiteboards) In some instances, the Interactive Whiteboard may be provided with an integrated Audience Response System so presenters can carry out polls and quizzes and capture the feedback on the Interactive Whiteboard
Display information from the computer Operate the software on the PC with a finger or a special marker Write, draw, erase, move a text, objects, graphics Recognize written texts, and painted shapes (rectangle, oval, circle, etc.) Save page as a file, flipchart, and then retrieve them for reuse Add pictures, movies and sounds to the pages of lesson’ flipchart Use database of templates and create own templates.
TRACEBOARD INTERACTIVE WHITEBOARD –TB SERIES• TRACEBoard Interactive Whiteboard TB Series can follow the tracks and confirm the position by the electromagnetic sensing between the board and the E-pen.• Technology advantages • Positionign error is less than 0.1mm. • High resolution of 8192*8192; high sensitivity; high speed and efficiency of writing; Floating mouse. • The Board surface is scratch resistant, anti-striken, and easily maintenance; Long lifetime and high stability.• Technology Disadvantages • Special E-pen is necessary • Battery might need replacement• Electromagnetic sensing interactive whiteboard takes 35% global market share. http://www.traceboard.com.cn
ACCESSORIESQwizdom is a market leading provider of AudienceResponse Systems, sometimes referred to as ElectronicVoting Systems or Audience Clickers. Using advancedRadio Frequency technology, Qwizdom’s handheldremotes and interactive writing tablet are designed toengage your audience in the boardroom, the classroomor for staff training. Imagine polling your audience in themiddle of a meeting for their input, and then instantlyviewing a graph of the resultQwizdom’s new wireless tablet combines advanced RFtechnology, presenter controls, and response systeminteractivity* to help teachers and students connectand collaborate in completely new ways.It’s sleek modern design allows teachers todraw, annotate, and control computer applicationswithout being tethered to a computer.Additionally, presenters can view notes, presentationindicators, and input from participants on the tablet’sLCD screen.
Software IntroductionTRACETools. TRACETools system supports drivers for digitalinteractive whiteboard. TRACETools can build a digital interactivepresentation platform which provides powerful support for theapplications.Main Functions: TRACEtools provides communication between theboard and computer, driver of HIKey as well as some applicationtools including CI (Cognitive Ink), Spotlight, Screen Shade, etc.TRACEBook. TRACEBook system is the application software fordigital interactive whiteboard. TRACEBook provides a simple andhigh-efficiency presentation system to improve the board usage.Main Functions: Courseware can be made and presented byTRACEBook which can also synchronize the sources ofshapes, images, words, sounds, videos, animation, etc. Moreover, thesources can be edited real-timely for better presentation.
Library of EducationalScreen Size Resources Additional Normal marker? control Group work? ? Аnti Vandal Special markers, or hand? Speed and accuracy! Native language. Screen material. Sanitary.
IWB “computer + projector” system
Increase the amount of work in the classroom and diversify the forms of pupils’ training activities in the classroom; Increase the volume of the presented educational information and its visibility. Use in the classroom reference resources and necessary software in real-time; Improve the monitoring of students knowledge and diversify of its forms; Increase the diversity and number of training tasks; Opportunities for interactive dialogue between the student and the means of education and development of skills to research; Possibilities of group and collective work.
Promotion of cultural and humanitarian development of students. Improving efficiency and quality of the learning process and the development of interdisciplinary connections. Enhancing students cognitive activity and raising the interest of the child to study the mathematics and to learn at all. Changing the focus from the theoretical knowledge to practice. Development of individual work of students in a classroom. Students become co-authors of the educational process. Forming researching skills and creativity of students.
ScenarioRoles:Cinderella – a teacher in a simple school. Verysmart, clever, interesting but without big technical tools. UsePower Point Presentations during her lessons.Fairy – Cinderella’s helper. Suggests Cinderella to chose one ofseveral White boards. Describes different White boards and givesCinderella a chance to be unique for Prince.Prince – would like to find somebody unique and marry her.Organizes a ball (dances) where all participants need to showtheir lessons.Cinderella’s step-mother – wants her daughters marry the prince.Use Cinderella’s ppt’s to be the best during the ball.
ScenarioGame goals:Cinderella needs to make a good choice of a white boardto make something unique (inspiring) during the lessonand marry the prince.Rules:The topics of the step-mother’s lesson and Cinderella’slesson should be similar.
Game steps: Scenario1. Organize 3 teams. Choose roles (5 students in each team – Cinderella, Step-mother, Fairy, 2 step-sisters)2. Choose the topic of the lesson Cinderella and her Step-mother will show.3. Team work and preparing performance. Students write their words according to the roles. Cinderella needs to choose the White board and to prepare a small part of a lesson using it. Step-mother and her daughters prepare small part of a lesson using Power Point but the same topic as Cinderella. Fairy prepares the speech about advantages of different white board to tell Cinderella.4. Acting the story. The prince evaluates the lessons of three teams Cinderellas and step-mothers and chooses the wife.
Ready educational programs Programs for knowledge control Programs for demonstration and interactive models http://www.traceboard.ie/resources.html IWB: Research. http://www.btinternet.com/~tony.poulter/IWBs/research.htm