Suburban Hospital is sponsoring a free Baby Sitters' Workshop ("to help you keep a child safe and happy") Saturday, June 20, from 9 to 11:30 a.m. at the hospital's Carter Hall Auditorium (8600 Old Georgetown Rd., Bethesda). The workshop is free, but some parents may want to consider asking -- even paying -- their favorite baby sitter to attend. (If they can't make this workshop, consider paying them to take a Red Cross course in first aid.)

Dr. Robert Rothstein, director of Suburban Hospital Emergency Services, Sharon Hardy, RN, Lynn Lucas-Dreiss, RN, and representatives from Montgomery County police and fire departments will answer sitters' questions about how to deal with emergencies, how to use the 911 emergency number, how the police and fire department can help you, what parents expect and what you should expect from parents.

For more information, and to register: (301) 530-2580.

Advice about how to keep children safe and happy also can be found in the following guides:

The booklet "Guide for the First-Time Baby Sitter" is available free (send a self-addressed stamped envelope) from Johnson & Johnson Baby Products, Grandview Road, Skillman, N.J. 08558.

The practical Dear Baby Sitter Handbook by Vicki Lansky (Bantam, $3.95) contains handy fill-in sections for providing information that most parents never think to give a baby sitter, though they might need it in an emergency: where to find first-aid supplies, information about allergy or special medical information, and a medical authorization form giving the emergency room physician your authorization to deal with any medical emergency that arises in your absence -- particularly important if you will be gone for a lengthy period and cannot be reached by phone.