Confetti event welcomes 2013 at Habitot

Toddlers and parents can start the new year with art activities and lots of color at Confetti Arts Week through Jan. 6 at Habitot Children's Museum, 2065 Kittredge St.

"Children will create sparkling collages with confetti, and can make a shimmering confetti tornado in the wind tunnel," during regular hours at the museum, 9:30 a.m. to 12:30 p.m. Monday through Thursday, and 9:30 a.m. to 4:30 p.m. Friday through Sunday.

Regular admission rates of $10 children and $8 adults apply.

For more details about Habitot, its events and free admission days, visit www.habitot.org.

'Instant Chorus' event for lovers of singing

Betsy Blakeslee will lead an "Instant Chorus" event for adults and children over 8 from 3 to 5 p.m. Jan. 5 at Freight & Salvage, 2020 Addison St.

Adults and young people who love to sing are invited and there are no audition requirements. Children must be accompanied by an adult. The cost is $20, but scholarships are available for those who make advance arrangements.

Blakeslee is a longtime choir leader in the East Bay.

Details: betsyblakes@gmail.com or 510 387 4462.

Red Cross will hold blood drive at Cal

An American Red Cross blood drive will be held from noon to 6 p.m. Jan. 23 in the Toll Room at Alumni House on the UC Berkeley campus.

To schedule an appointment call 800-733-2767) or visit redcrossblood.org and enter sponsor code UCB.

Native plant workshop planned at Garber Park

Volunteers are welcome to join the stewards of Garber Park for a workshop and work day devoted to "passive restoration" at 10 a.m. Jan. 19.

Restorationist Lech Naumovich will explain ways to encourage the spread of native plants growing nearby. Participants are advised to be prepared to get dirty and dress accordingly. The park is off Alvarado Road behind the Claremont Hotel on the Berkeley/Oakland border. From Alvarado take Slater Lane, then right on Evergreen Lane, where the park entrance is at the end of the street.

Birthday concert by Anna Carol Dudley

Anna Carol Dudley, a longtime teacher of special programs at the UC Berkeley Department of Music, will continue her tradition of performing birthday concerts by singing on her 82nd birthday at 3 p.m. Jan. 20 at First Congregational Church of Berkeley, 2345 Channing Way.

Organizers say the concert will be a benefit for the church, where she has sung numerous times since coming to Berkeley in 1957.

Accompanists will be Larry Marietta on organ and piano, and harpsichordist Phebe Craig. Singing with her in pieces for Three Sopranos will be singers and congregation members Angela Arnold and Julie Greer, along with Terry Jackson on clarinet.

Admission is by donation. To reserve a seat or get more details call 510-848-3696.

Students welcome at Mathematics Festival

Math-loving students in grades 6-12 are invited to sign up for the Julia Robinson Mathematics Festival, taking place from 8:30 to 11:30 a.m. Jan. 27 at UC Berkeley's International House.

The challenging but noncompetitive festival is a program of the Mathematical Sciences Research Institute and named for Robinson, a longtime UC Berkeley mathematics professor.

"The festival is ideal for students who love math, games, or puzzles, for contest-goers seeking another side of math, or for those who prefer a collaborative, noncompetitive approach to problem-solving," say organizers. "At the festival, students can spend an entire morning exploring mathematical activities designed to inspire curiosity, encourage collaboration and promote creative problem-solving."

Participants spend about 20-30 minutes on each activity and get support from adult volunteers. Some problems will engage middle school students, "while others are advanced enough to challenge the brightest high school students."

There are limited spaces at the festival to allow individual attention for each student.

The cost is $10 per student and registration and details are online at https://hosted.msri.org/jrmf/2013/berkeley/register. Full and partial scholarships are available.

New exhibit on branch library history

A new historical exhibit on The Branches of Our Community: Berkeley's Neighborhood Libraries is now in the Reading Room of the Central Library, 2090 Kittredge St.

The West and South branches are being completely rebuilt and enlarged and are scheduled to open in 2013.

Details: 510-981-6195.

-- Chris Treadway