special correspondent john tulenko of learning matters reports from philadelphia. >> ohhhh class!hhh class! >> when i say class, you stop what you're doing! >> look at the teacher. >> reporter: today is wacky wednesday in jasselle cirino's third grade classroom, which explains the blue wig. >> so i want you to teach your neighbor. >> reporter: but the rest of what you're about to see is what her class looks like every day. >> i want giant gestures! teach! >> reporter: she uses a set of techniques some call whole brain teaching. >> a lot of times in traditional teaching you're just lecturing, and you're talking and talking and what we like to say-- whole brainers-- we like to say, "the more you talk, the more students you lose." and so we use different methods to engage multiple parts of the brain and that way you get 100% engagement. >> reporter: these days, scientists can look further into the brain than ever, pinpointing the neurons and circuits that control how we think and act. all that's sparking a movement that's changing the way some teachers teach. are there parts of the b