A document camera is a digital camera mounted on an arm and connected to a projector or other display. The camera can zoom in on a flat object (e.g., a magazine) or three-dimensional one, like the flower in the photo at left. The camera on some units can be pointed away from the stand. Many classrooms at Notre Dame are equipped with the unit shown in the image or one like it.
FYI: this device is also referred to as an image presenter, visual presenter, digital visualizer, digital overhead, docucam.
Creative ways to use a document camera in a classroom include: project a printed math problem on and work it out; have a student annotate a copy of a text; manipulate pieces of paper to create a room design; project sheet music and have students sing along; or act out a scene with clay figures, finger puppets, or tiny dolls.
Qomo QD3900H1 document camera is a flatbed document camera with 5M camera. 12X optical zoom and 10 X digital zoom. Can use as an interface for different projector and interactive display. Buit-in annotation helps you to text whatever you want in the files you wanna remark. In future, you will get a 4K document camera with Qomo QD3900.
Today we have the visualizer. It is safer and much more versatile than the ancestral opaque projector, although the latter has matured and is still in use. A document camera is often connected to a projector or other type of display, but may also feed directly into a computer. After everything is hooked up and turned on, place an object below the camera (many cameras can also be pointed away from the stand). The device may include a light source that can be used as needed, and the camera should have zoom and focus controls.
General techniques
- Show a flat document, like a magazine
- Show a more substantial object, such as an archaeological artifact
- Zoom in on fine print or a small object – product label, postage stamp, fossil, insect, leaf, etc.
- Project a ruler or coin along with other objects to convey a sense of scale
- Point the camera away from the stand to show a large object or capture students at work
- Project a kitchen timer or watch to help with time management
- Start from a blank page or graph paper, lined, music staff, etc.
- Capture still pictures for later use
- Send an image to a “guest” during a video conference
Show students how to …
- Draw or paint
- Operate a camera
- Dissect a fish
- Read a scientific instrument
- Use an iPhone app
- Graph with a compass and protractor
Have students …
- Work out a math problem
- Annotate a text
- Manipulate a room layout design using pieces of paper
- Fill in country names on an outline map
- Sign a song from sheet music
- Act out a scene with clay figures, finger puppets, or tiny dolls
More objects you might project
- Flat documents
- Newspaper, or dictionary
- Clipping – chart from USA Today or editorial cartoon
- Photo – loose or in a coffee table book
- Student work
- Other objects
- Circuit board, thermometer or calculator
- Work of art
- Prism or magnet
- Toy or board game
- Model rocket
- Handheld game or DVD player
Post time: Jun-10-2021