i'm damian trujillo, and today the achievement gap challenges at the eastside union high school district. the superintendent is here to explain what they're doing about it on your "comunidad del valle." male announcer: nbc bay area presents "comunidad del valle" with damian trujillo. damian: we begin today with the monthly visit of the mexican consulate in san francisco. with me is stephanie knapp, who is director of media affairs there in san francisco. welcome to the show. stephanie knapp: thank you, thank you, damian, for having us this evening. damian: it's always great to be here with you. now, we have video of what happened in 2015. this is el grito that you all--we always celebrate. tell us what el grito is all about and how we celebrate it in san francisco. stephanie: so, every year, as you know, we have this celebration, which is very traditional in mexico.