T.O.A.S.T.: Tribeca's Great Art Walk Tribeca artists will open their studios and homes to the public this month, offering a peak at their works and their working environments. The Tribeca Open Arts Studio Tour is set for Saturday, April 24, through Monday, April 26, from 1 to 6 p.m. This year's tour will have a record number of 107 artists participating. The annual self-guided tour is a chance for the public to view, purchase or gain greater insight into the works through conversations with the artists. "You work in a vacuum a lot of the time, and all of a sudden you have upwards of 1,000 people traipsing into your studio over the weekend looking at your work. It's very energizing," said Regina Silvers, an artist and one of the event's organizers. Beginning April 10, participating artists' works will be featured in a slide show in a window display at New York Law School. The slides will continue after April 17 at Franklin Station Cafe, 222 West Broadway. Tour admission is free. Artists and galleries often serve refreshments. Maps of the tour route can be downloaded from www.toastartwalk.com or picked up at participating restaurants and galleries. General information is available at 212-479-7323. Hearing Tests Downtown Free hearing screenings will be offered on April 7 from 11:30 a.m. to 5:30 p.m. in front of the Downtown Information Center, 25 Broad St. The three-minute tests will be conducted by audiologists from the League for the Hard of Hearing. To reserve a screening time, call 212-425-4636 or go to events@downtowninfocenter.org. The screenings are sponsored by Wall Street Rising. Call for Crossing Guards The New York City Police Department is seeking school crossing guards for the intersections at Chambers and Greenwich and Chambers and West streets. The positions require guards to work 20 hours per week escorting students across the intersections during the morning, lunchtime and afternoon. Salary is $8.01 per hour and includes medical benefits. Call Officer Batignani at 212-334-0601 for more information. Park Lawn Closed Washington Market Park's lawn will be fenced off and closed to the public in April and part of May for its annual aerating and seeding. Invitations to Plant It's time to garden! Friends of Greenwich Street is looking for help in planting some of the flower beds on Greenwich Street between Chambers and North Moore streets. They will be working the beds on Saturday, May 1, from 1 p.m. to 3 p.m. Friends of Duane Park will hold its annual Celebrate Spring in Duane Park, a celebration for adults and children, on Sunday, May 2, from 11 a m. to 1 p.m. There will be live music, refreshments and exotic animals to see. Visitors will be able to plant herbs and flowers. Flea Market at IPN The Independence Plaza Tenant Association flea market will take place on April 3 and 4 in the Community Room at 310 Greenwich St., from 11 a.m. to 5 p.m. Donations will be accepted on the days of the sale. Call 212-619-4729 for information. T.O. Elections The Tribeca Organization is holding its annual general meeting on April 21 at 6 p.m. at its office at 205 Hudson St., 2nd floor. There will be an election of board members. Those interested in running should contact Sid Whelan at 212-966-0063.