Students at more than 1,000 schools across the country are registering young voters in lunchrooms, hallways and even at upcoming graduation ceremonies in a week of activism aimed at electing lawmakers who support gun reforms in response to school shootings in Florida and Texas.

David Hogg, a senior at Marjory Stoneman Douglas High School in Parkland, is spearheading the national effort along with the New York-based organization HeadCount. Hogg and organization officials say students at more than 1,000 schools in 46 states are participating, with most starting their drives Tuesday. Their goal is to have 90 percent of the nation’s high schools host drives before the current senior class graduates in hopes of boosting young-voter turnout, which is traditionally low, especially during midterm elections.