This paper presents principles, functions, and experiments of a new edutainment tool: Big Fat Wand (BFW). BFW is developed from a conventional laser show device, however, it is modified to a small enough one to be used at an open apace. BFW is connected to a laptop PC, which provides character, symbol images, and/or animations. From experimental results, we conclude that BFW is a good gear for a facilitator to educate and educate hearing-impaired students.
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