What Is an Electronic Whiteboard?

The projector is placed behind the electronic whiteboard and the projection is just that the computer image is displayed from behind the whiteboard, so that the user can operate very naturally without blocking the projection light and creating any shadows. The rear-projection whiteboard has the same system composition as the front-projection, it integrates the projector and reserves the space for the PC.

Electronic whiteboard

1. Basic annotation and drawing functions. Screen annotation can be implemented on any computer interface. The pen shape can be selected from ordinary pens, row pens, and writing brushes. The color of the marker pen can be arbitrarily set. The content of the marker can be erased at any time using the electronic rubber. Content can be saved and printed at any time;

2. Mouse function, the tip of the electronic pen is equivalent to the left mouse button, and the pen button is equivalent to the right mouse button. Use the electronic pen to realize the functions of mouse click, double click, selection, drag, right click, etc .;

3. Interactive whiteboard content recovery and update function.

4. Auxiliary tools: directly use the board shortcut toolbar to achieve screen content magnification, spotlights, masking, viewing snapshots, viewing blackboard books, screen calibration, and using custom functions, call the computer application or visit the set web page at any time .

5. With screen capture, layer technology, graphic editing functions; static graphics into dynamic, more vivid and intuitive. It can also replay the operation content to improve the teaching level and quality.

6. Unlimited page writing function;

7. Handwriting recognition function, you can select the recognition language in the existing language pack of the operating system, and then write.

The electronic whiteboard is a relatively new product, which brings together a variety of high-tech means such as cutting-edge electronic technology and software technology.

Interactive teaching method of interactive whiteboard:

With the further deepening of teaching reform, electronic whiteboard products have attracted much attention from the education market, especially interactive whiteboard products, and the market demand has continued to grow. Interactive whiteboards have become the trend of multimedia development of global teaching activities in classroom teaching. Interactive whiteboards play the best teaching effect.

The interactive electronic whiteboard is fully equipped with a short-focus projection to form a multimedia teaching system. It is more convenient to use with the interactive electronic whiteboard. Due to the ultra-short focal length of the projector, the projector is installed closer to the whiteboard, and the user will not obstruct it during use. The light path is projected to make the presentation more complete and the communication smoother.

The interactive electronic whiteboard can communicate with the computer for information, connect the electronic whiteboard to the computer, and use the projector to project the content on the computer to the electronic whiteboard screen. With the support of special applications, a large screen, interactive Collaborative meeting or teaching environment. Can operate directly on the whiteboard, edit, annotate, save files and other operations that can be realized on the computer.

Interactive electronic whiteboard teaching platform (mainly including computer, projector, interactive electronic whiteboard). Compare the two teaching methods of blackboard and e-learning platform, take the essence (interaction of blackboard and richness of e-learning), and remove the dross ( The monotonicity of the blackboard and the unidirectionality of e-learning) have fundamentally solved the problems and deficiencies in the previous teaching mode, truly realized the "interaction between teaching and learning", and realized a high-quality and efficient teaching mode.

The interactive whiteboard has all the functions of and beyond the blackboard, including free writing, drawing, and focusing, and can use or edit a variety of electronic courseware. The application in teaching is mainly reflected in the following aspects:

No need for chalk or mouse

Teachers and students use whiteboard pens or even fingers to completely replace the function of traditional chalk. This can not only avoid the various hazards of chalk, but also save resources, and fully realize a healthy, environmentally friendly, and energy-saving teaching mode.

Rich multimedia resources

You can use colorful multimedia resources, and you can write or mark at any time. The teaching process can be easily saved as teaching videos and sent to students. Students no longer need to take notes while listening to lectures. Teachers can also exchange and study teaching videos with each other to improve teaching standards.

powerful

1. Difference in size:

The traditional electronic whiteboard has a fixed size. The optical electronic whiteboard can extend the writing size from 30 inches to 300 inches. It can also reach larger inches by splicing technology.

Faced with the status quo of many brands in the electronic whiteboard market, users are often hesitant to choose. For users who want to buy an electronic whiteboard, how to choose a whiteboard that satisfies teachers and students. Choosing a whiteboard depends on the following three aspects:

1. Look at performance

When buying an electronic whiteboard, users are better to experience it for themselves, and some performance can be displayed at a glance. such as:

(1) Whether the positioning is accurate

If the positioning of the whiteboard is not accurate enough, it will cause great confusion to users in the future. Therefore, after the positioning of the whiteboard during the trial, observe whether the position of the font and the touch point on the whiteboard can be overlapped. If the degree of overlap is high, the positioning of this whiteboard is very accurate.

(2) Whiteboard sensitivity

A good whiteboard must be highly sensitive. Users can try writing on the whiteboard, observe the reaction speed of the whiteboard, and observe the lag time of the whiteboard development. If the lag time of the whiteboard development is obvious, it can only be said that the sensitivity of the product is not high. This response speed is clear at a glance, and the user can tell at a glance whether the whiteboard is sensitive.

(3) Convenience

The user must recognize the convenience and user-friendliness of the whiteboard after using the various functions of the whiteboard. A good whiteboard will definitely consider the user's experience. If the whiteboard is cumbersome to use and difficult to control, even if there is a good user training team, users will feel that they are powerless. So the easy-to-learn whiteboard will become the ultimate choice for users.

(4) Software and hardware parameters

This is difficult for the average user to grasp. Before selecting a whiteboard, users should compare several products to be selected, including the effective sensing area of the product, the type of screen (LED, LCD), image resolution, and product specifications. These parameters are generally clearly marked by the manufacturer, so You can choose a cost-effective product by carefully comparing them when you shop.

A good whiteboard must be equipped with its own professional software. Good software is like a highly intelligent brain and becomes the core of a whiteboard.

2. See the price

After comparing the performance, the user is most concerned about the price of the product. If you choose a big brand with a high market share, then users will naturally bear part of the advertising costs for these big brands, so the price is relatively high; but users must not choose small manufacturers without independent intellectual property rights in order to save costs. It is difficult for manufacturers to provide product protection.

Users are best to choose a manufacturer with independent intellectual property rights after comparing good product performance, and it is best to choose a product that suits them best.

3. After sales

Many users choose the whiteboard through the above comparison, and they will return with satisfaction. It is easiest to ignore after-sales problems, and often regret it after a problem with the product. So after choosing a whiteboard, you must see if the manufacturer can provide you with comprehensive after-sales service.

It is believed that by learning the above-mentioned purchasing common sense, users will have brighter eyes when choosing an electronic whiteboard.

The most important thing for the maintenance of the electronic whiteboard is the maintenance of the board surface.

The surface of the board is the main part and the important display part of the electronic whiteboard. Its maintenance needs to start from two aspects: daily use and maintenance and cleaning.

1. In the process of using the infrared whiteboard, it is better not to let anything touch the whiteboard except for pointers or writing tools. This is mainly because the contact with the electronic whiteboard is too diversified or it can cause the board Damage, resulting in the use of the electronic whiteboard projection on the display in the future will have some impact.

2. Because the board surface of the electronic whiteboard is generally made of high-quality and wear-resistant materials, normal problems will not cause any problems, but you must avoid sharp objects (such as sharp objects such as knives). Touch the surface to avoid damaging and scratching the surface. In addition, usually do not leave writings on the board for a long time, so the writing is not easy to remove. And especially note that during the use of the electronic whiteboard, you cannot use oily colored pens to write on the electronic whiteboard! If this happens, you must immediately wipe the board surface with absorbent cotton dipped in alcohol.

3. In order to ensure a good display effect on the board surface, the board surface needs to be cleaned frequently. If the electronic whiteboard is used frequently, it is best to clean it about once a week to maintain the best sharpness. The user is reminded that before cleaning the whiteboard panel, the interactive whiteboard should first exit the system. Because touching the screen while the computer is in another state (for example, a program is open or on the desktop), pressing the screen to activate the program or mess up the icons. After exiting the system, put the projector into standby mode to make it easier to show stains and streaks. When moving the electronic whiteboard, do not touch the screen or wipe the whiteboard.

4. In general, the writing surface of the electronic whiteboard is cleaned, and a clean soft cloth can be used for cleaning. Do not scrub the screen with a dry cloth to avoid electrostatic charges. The wet cloth used for scrubbing must be wrung out, no water can flow out, let no water seep into the board from the bottom frame. It can also be used after trialing non-abrasive denatured alcohol and glass cleaner in a small area. The special electronic whiteboard cleaner can achieve better cleaning effect. If it is difficult to remove the dirt, you can spray the cleaner on the panel and then wipe it with a paper towel.

And once there are more stubborn marks, don't worry, users just need to completely cover them with the ink of the dry-erase marker pen, and then wipe them with a soft cloth. Dry-erase inks contain solvents that dissolve permanent inks. If the original permanent ink remains, spray standard glass or whiteboard cleaner on this area and wipe it off.

Note: When cleaning dirt, do not use thinner and volatile oil to wipe the writing surface of the electronic whiteboard, otherwise discoloration or damage to the writing surface may occur; do not use detergents such as furniture cleaners that contain surfactants, otherwise it may cause The writing cannot be erased. Before cleaning, it is best to check the instructions provided with the electronic whiteboard equipment for operation. ^[1]

The maintenance of the optical electronic whiteboard is relatively simple. The optical electronic whiteboard is not afraid of scratches and impacts, is riot-proof, waterproof, dust-proof, oil-proof, anti-electromagnetic interference, anti-light interference, and meets various environmental requirements. And the damage of the optical white board surface does not affect the interactive use.