But the one-semester class has gone full-time because of “strong demand from students to make this a year-long course,” Peng said. Peng’s course has been such a hit that state lawmakers are considering making it mandatory, statewide. What grabbed Peng’s eye in 2021 was an editorial in the school paper written by Anisha Singhal, who asked, “Calculus Before Checkbooks?” When Peng introduced the class in 2022, it was so popular that even Singhal ended up on a waitlist to get in. The class covers mortgages, tax returns, student loans, and more. Singhal said that “If there was an empty seat...