Display controls using loop and inserting records to Access DB, How?

Hi, I am working on one form where user will select class then section and then number of subjects for that class.
Basis on user selection no. of subjects for that class, I need to insert subject_name and max_periods to database in the single record,row, of class_section.

I have fields in my DB table: class, section, sub1,max1, sub2,max2, sub3,max3 ..... sub15, max15
Controls: textbox for class,section, sub_, max_
Combobox: to selcet no. of subjects
Buttons: Save, Delete

Thanks in advance,expert advise required.