Many children who grow up in Japan learn origami. Henry Kaku turned it into a lifelong pursuit, and a career. He created his first piece of origami—a person wearing a kimono—in the 1950s when he was 5 or 6 years old and by the 1970s was teaching classes. Now he travels the globe offering instruction, making a stop at the Children’s Museum of Sonoma County in Santa Rosa on November 9, 1–3 p.m. Kids can expect to learn how to make a crane—an international symbol of peace—and other pieces of origami, and find out about the art’s history, too. The class is free with admission to the museum ($9–$12 or free for babies younger than 12 months; EBT cardholders with ID get in for $2). See cmosc.org.