TACKLE THE CHESAPEAKE SPORTFISHING SHOW

If your idea of a good time involves hooks, flies and long stretches of silence, you might want to dock briefly at Annapolis this weekend: The 11th annual Chesapeake Sportfishing Show is 6 to 10 Friday, 10 to 9 Saturday and 10 to 6 Sunday at the Greek Hellenic Center on Riva Road (take the first Annapolis exit off U.S. 50). There'll be more than 40 exhibits by top manufacturers, tackle demonstrations and seminars with leading fishing personalities. Admission is $4, 50 cents for kids under 12 and $2 for seniors. Call 301/263-2550.

ARTS IN ANNAPOLIS

Whether you photograph, sing, weave or plie', Maryland Hall for the Creative Arts is where you should be for a free arts "sampler" between 10:30 and 2 Saturday. Besides the aforementioned free continuing demonstrations, the hall's open house includes workshops in jewelry repair, t'ai chi, painting and ceramics. To register for the free workshops, call between 10 and 5 Friday or 9:30 and 10:30 Saturday. The hall is at Constitution Avenue and Greenfield Street in Annapolis. Call 261-1553 or 301/263-5544.

DATED MATERIAL

Despite what we said last week, the 33rd annual Washington Antiques show is this weekend at the Omni Shoreham Hotel. More than 40 dealers offer collections of porcelain, paintings, silver, jewelry, furniture and more between noon to 9 Friday and Saturday and noon to 6 Sunday. Collectors can also get oral appraisals of silver, porcelain, paintings, prints, jewelry and oriental objects 10 to noon Saturday for $5 per item. The hotel is at 2500 Calvert St. NW near Metro's Woodley Park/Zoo station on the Red Line. Admission is $6. All proceeds benefit the Thrift Shop Charities. Call 234-0700.

THE INSIDE STICK

This is the second year that pro indoor lacrosse returns to the Capital Centre, and you better believe it's meaner than ever. The Washington Wave, finalists in the inaugural pro indoor lacrosse season last year, begin '88 against the Philadelphia Wings at 1 Saturday. Tickets are $9.50 to $13.50. Call 432-0200.

CHILD'S PLAYS

Pinocchio comes to life -- with a little help from the Puppet Company performing at the Capital Children's Museum this weekend. Marionette shows are at 10:30 Friday and 1 and 2:30 Saturday and Sunday (and through the month). It's $2.50. Combined show and museum admission is $6 at 800 Third St. NE. Call 543-8600.

Offbeat title notwithstanding, "Sir Slob and the Princess" is a fairytale complete with a king, beautiful princess and courageous hero. Produced by the Magic Window Children's Theater, the play is at 10 Saturday at Woodbridge Senior High, 30013 Old Bridge Rd. in Woodbridge, and at 2 (also Saturday) at the Osbourn Park High School, 8909 Euclid Ave. in Manassas. All tickets are $3. Call 703/361-7126.

BEASTS AND CHILDREN

At "Dinosaur Rock," kids can meet Stella Stegosaurus, Dinah Diplodocus, the Hadrosaurus from Hackensack and other prehistorically inclined puppets at 11 Saturday at Northwood High School (Arcola and University Boulevard in Silver Spring). Tickets are $4 at House of Musical Traditions (7040 Carroll Ave., in Takoma Park), Olsson's Records (12350 Parklawn Dr., Rockville) or Cuddle Corner (in Wheaton Plaza), and they go quickly. Call 337-4313.

Learn a thing or two about smaller reptiles with Billy B. and his "Romp in the Swamp" -- a 45-minute concert in which Mr. B plays guitar and sings all about the trees, animals, earth and ecology at 11 and 1 Saturday at Strathmore Hall Arts Center. Tickets are $3, on sale at 10 a.m. Saturday for both shows. The center is at 10701 Rockville Pike in Rockville. Call 530-0540.

MILITARY MUSIC

Members of the Takoma Park Academy Band join the U.S. Navy Band for a free concert at the Takoma Park Academy (8120 Carroll Ave.) at 3 Sunday. Selections include E. E. Bagley's "National Emblem March," "Mars" from Gustav Holst's "The Planets" and "Gold and Silver Waltz" by Franz Leha`r. Call 270-4048.

LAST OF THE TOYS

The gifts are all unwrapped and the presents opened, but if you and yours haven't had enough of the holidays and the toys that come with them -- make plans to stop by the National Gallery of Art for the exhibition "Naive Visions: Antique Toys from the Shelbourne Museum." The toys, American- and European-made, date from the 18th to early 20th century and include hobby horses, ninepins, dolls and dollhouse furniture. It's free, open through April 14. Call 842-6011.

TO NOTE

Anderson House (also known as the Society of the Cincinnati) opens its turn-of-the-century doors for a free "crossover" concert: medieval, renaissance and Appalachian music by the Washington-based baroque ensemble Hesperus at 3 Saturday at the museum, 2118 Massachusetts Ave. NW. Call 785-0540 or 525-7550.

TRAGEDY ON A STRING

Greek tragedy takes a new turn as the Smithsonian Resident Associates Program presents Euripides' "Medea" -- performed by the Marionette Theater of Peter Arnott at 3:30 Sunday in the Baird Auditorium of the Natural History Building (10th and Constitution). With 18-inch handcrafted marionettes, the play -- probably not for young kids -- is actually a one-man performance with Arnott controlling and speaking as all of the characters. Tickets are $12; $5 for students with ID. Call 357-3030.