The dread of high school algebra is lost here amid the blue glow of computer screens and the clickety-clack of keyboards.
A fanfare plays from a speaker as a student passes a chapter test. Nearby, a classmate watches a video lecture on ratios. Another works out an equation in her notebook before clicking on a multiple-choice answer on her screen.
Their teacher at Agoura High School, Russell Stephans, sits at the back of the room, watching as scores pop up in real time on his computer grade sheet. One student has passed a level, the data shows; another is retaking a quiz.
"Whoever thought this up makes life so much easier," Stephans says with a chuckle.