In ASL, one hand is Dominant (the one you write with), the other is Non-dominant.

Why?

There are two categories of signs: Symmetrical & Asymmetrical.

Symmetrical signs use both hands that mirror each other in (shape, movement, location)- so, both dominant/non-dominant hands work in tandem (ie the sign for TEACHER, ADVERTISE, COUNSEL, etc.).

Asymmetrical signs require one hand to remain stationary (as a base), while the other moves (ie the signs for SUPPORT, LEARN, COLLEGE etc)

Other signs (like DEAF, HEARING, YES, NO, or the entire ASL alphabet, etc) require only one hand - one's Dominant hand.

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