Play, experiment and discover new ideas at Tinkerlab, a weekly all-ages program that introduces science, technology, engineering and math (STEM) concepts. Each week, there will be self-directed STEM challenges with building and inventor kits to play with and topical books and resources on display.

Library programs are free and open to the public. Free parking is available at each of the Library locations. Tinkerlab is appropriate for all ages. Registration is not required.

Dates, times and locations for the workshops are as follows.

Tinkerlab Drop-In
Drop in and work on a fun STEM-based craft or challenge and tinker around with construction and builder kits. Activities will be available for tinkerers of all ages.

6 p.m. to 7:30 p.m. Mondays, April 3, 10, 17 and 24 at the Delridge Branch, 5423 Delridge Way S.W., 206-733-9125 .

4 p.m. to 6 p.m. Wednesdays, April 5, 12, 19 and 26 at the South Park Branch, 8604 Eighth Ave. S., 206-615-1688 .

4 p.m. to 5:30 p.m. Thursdays, April 6, 13, 20 and 27 at the High Point Branch, 3411 S.W. Raymond St., 206-684-7454 .

2 p.m. to 5 p.m. Monday, April 10 at the Columbia Branch, 4721 Rainier Ave. S., 206-386-1908 .

4 p.m. to 6 p.m. Monday, April 17 and 24 at the Columbia Branch, 4721 Rainier Ave. S., 206-386-1908