Perhaps you’ve never considered the difficulties for Deaf/HH students, even with an interpreter or captionist present, in trying to learn from spoken directions or a demonstration. These often involve pointing at different items –for example in a lab setting, or indicating steps to be followed on a computer screen.
Deaf/HH students are expected to look at two places at once: at the interpreter or captioning, and at the object.
A few simple procedures will make this process clear for Deaf/HH students.
Describe each step of a process before performing it, and then pause for students to shift their attention.
Then take the step yourself, without comment.
Repeat this procedure.