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| | Teacher
can face toward class |
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| instead
of toward the board |
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| | Can
return to material that |
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| would
be erased on a board |
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| | Can
manipulate material |
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| | Supports
real-time writing; |
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| everything
does not need to be |
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| done
in advance |
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| | Can
publish and archive all the |
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| content
[dont need tablet PC to |
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| view] |
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