In math, students advance to work with decimals up to the hundreds place. Students add, subtract, and multiply fractions, including fractions with different denominators. They expand their geometry ...

Normally, Sherry Geesaman wouldn’t be nervous. Normally, she’d flip open a plan book or a textbook and start riffing. That is, after all, what veteran educators do. And Geesaman’s been teaching for 20 ...