ADULT, CHILD AND INFANT CPR, life-saving procedures taught. Sponsored by Howard County General Hospital, 4:30-9:30 p.m., Wellness Center, Columbia Medical Center, Suite L-9, 11055 Little Patuxent Pkwy., Columbia. $52; registration required. 410-740-7601.
KINDERGARTEN PREVIEWS, for ages 4-5. An introduction to kindergarten with stories and other activities. 7 p.m., Savage Branch Library, Gorman and Knights Bridge roads, Laurel, 410-880-5978; 2 p.m. Monday, 10:30 a.m. Tuesday, Central Library, 10375 Little Patuxent Pkwy., Columbia. 410-313-7880. Free.
LIBRARY WRITERS CIRCLE, opportunity to share original writing with other authors for support and feedback, 7 p.m. Glenwood Branch Library, 2350 Route 97, Cooksville. Free. 410-313-5577.
MEDICARE PRESCRIPTION DISCUSSION, "Understanding Medicare Prescription Drug Coverage." Representatives of the Senior Health Insurance Assistance Program, Howard County Office on Aging, lead the discussion, 10 a.m., the Bain Center, 5470 Ruth Keeton Way, Columbia. Free; registration required. 410-313-7391.
AQUARIUM SLEEPOVER, an after-hours tour and discussion by divers of the nocturnal behaviors of the residents of the National Aquarium in Baltimore's Atlantic coral reef exhibit. Hands-on activities and crafts included; in the morning, observe animals when they are at their most active. Snacks and breakfast provided; participants must bring sleeping gear. 7 p.m.-9 a.m., Pier 3, 501 E. Pratt St., Baltimore. $67; ages 8-11, $50; admission to aquarium after the sleepover is not included. Reservations required; limited to six people per reservation. 410-727-3474.
BABY-SITTING PROGRAM, for ages 11-14. Teaches first aid, emergency procedures, age-appropriate activities and other skills; participants receive a certificate. Sponsored by Columbia Teen Center, 9 a.m.-1 p.m. at the center, 5851 Robert Oliver Pl., Columbia. $48; Columbia residents, $40; registration required. 410-992-3726.
GARDENING TALKS, discussion of gardening concerns and problems by a master gardener. 10 a.m.-noon Saturdays, Glenwood Branch Library, 2350 Route 97, Cooksville, 410-313-5577, and 10 a.m.-noon Saturdays and 7-8:30 p.m. Mondays, through Sept. 26, Miller Branch Library, 9421 Frederick Rd., Ellicott City, 410-313-1950. Free.
DOG EVENT, "A Dog's Day in Ellicott City," pet adoptions, pet-owner dress-alike contest and best bandana contest . Benefits the Howard County Division of Animal Control. Contest registration, 11 a.m.; contests begin 1:30 p.m., Yuppy Puppy Pet Boutique, 8120 Main St., Ellicott City; pet adoptions, 2:30 p.m., B&O Plaza, Main Street and Maryland Avenue. Admission, free; contest registration fee, $5. 410-750-9663.
POTTERY DEMONSTRATION, the art of throwing clay to make bowls and teapots, by David and Junko Young, owners of Lion Potter in Sandy Spring. 11 a.m. Glenwood branch library, 2350 Route 97, Cooksville. Free; registration required. 410-313-5577.
ANIMAL STORIES, for ages 6-9, with a craft. 1 p.m. Central Library, 10375 Little Patuxent Pkwy., Columbia. Free. 410-313-7880.
SUBSTANCE ABUSE AND TRAUMA SUPPORT, for female sexual-assault or child-abuse victims recovering from alcohol or drug abuse and who live or work in Howard County. Emphasis on staying sober while going through a trauma. Sponsored by the Sexual Trauma Treatment, Advocacy and Recovery Center, noon-1 p.m. Mondays; call for program location. Free; registration required. 410-290-6432. Ext. 119.
YOUTH BOARD GAMES, for ages 11-17, Scrabble, Life, Yahtzee, Monopoly, Clue and others. 7-8:30 p.m., Glenwood Branch Library, 2350 Route 97, Cooksville. Free. 410-313-5577.
COMMUNITY KNITTING AND CROCHETING, opportunity to create afghans, blankets and baby clothing for local charities, hospitals and senior centers. 11:30 a.m.-1:30 p.m. the second and fourth Wednesdays, Kiwanis-Wallas Recreation Center, 10481 Frederick Rd., Ellicott City. Free; donations of acrylic yarn requested. 410-313-7279.
LIBRARY CHESS CLUBS, for ages 9-17, for players of all levels with knowledge of basic rules. 4-5:30 p.m. Wednesdays, Savage Branch Library, 9525 Durness Lane, Laurel, 410-880-5980; 6:30-7:30 p.m. Thursdays, East Columbia Branch Library, 6600 Cradlerock Way, Columbia, 410-313-7704. Free.
-- Compiled by KATHY ORTON
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