I would only have the students come in on their own; no other family members.

If I think sitting 6 feet away from a student and I have to keep getting up, I would rather wear a mask.  Parents can decide whether their child also wears a mask.  The student washes their hands before we start.  If a student shows any signs of a cold or runny nose, I will send them back to their parents.  
I will have disinfectant wipes to clean the keyboard and wipe down door handles.