Copy Row From One Sheet To Many Sheets Within Same Workbook

I'm trying to find the simplest way (macro I guess) to copy a row into a corresponding workbook. This is for a registration workbook.

This workbook has a demograhics sheet (the main sheet), which will have the persons name, dob, and a few other identifiers. It will also have a column for a registration person to enter the of the 4-5 workshops/classes that a student can be enrolled in. For the sake of argument these will be numeric, comma seperated values 1,2, 3 etc.

I'll then have many sheets (one for each class) that are named 1-Employee Morale, 2-Interoffice Relationships, etc.

Is there an easy way that upon entering a new row in the demographics sheet, the persons name can be copied to the class list? Esentially I'm trying to have one master list of all students and the classes they are signe dup for, and then a printable list for each class that can be given to the instructor.

I know you could probably do a macro, run it once, and do it after everyone is registered, but we would prefer that the data populate based on a trigger or something as each row is entered. The sheets for each class could be named numeric so if you entered 1,2,3 as the classes then the sheets 1,2,3 (names) would be populated.