Two school districts on the Navajo Nation will receive nearly $7 million to repair and upgrade schools under a federal grant program. The cash aid announced Wednesday by United States Educational Secretary Arne Duncan is part of $20 million in grants awarded to districts in Arizona and five other states. The Ganado Unified School District gets more than $1 million for its elementary, middle and high schools. The five school Red Mesa Unified School District will receive $6.8 million. Both districts are in Apache County.