con A aliquots
cleaned (but not necessarily sterile coverslip dishes (check size so they'll fit into the adaptors for the microscope stage)
10 mL S2 medium in a conical tube
Students put conA in non-sterile dishes
When they split their cultures, they put 1 mL of cells into a microfuge tube.
In class, they put cells onto the treated coverslip, then add medium after they are stuck.