Three DeKalb High Schools got about $3 million in federal grants from the Department of Education to help the schools shore-up student academic improvement. The schools, Clarkston, McNair and Towers high schools were identified as the county's lowest performing schools under the "No Child Left Behind" act. The money will be used for more teachers and educational tools to help the schools perform better. Towers received the most with $1.3 million, with Clarkston receiving more than $881,000 and McNair about $800,00 for the new school year which began this week.