Which expression is more appropriate to use in your classes? Check out this post to find out.
(a) Yay is an exclamation that shows feelings such as excitement, joy, happiness, triumph, and approval.
(b) Yea is another way of saying “yes” or “indeed.”
(c) Yeah is an informal way of saying “yes”
To read more about Yay, Yea, Yeah, or Yes click here.