Twenty-four students in Newton North High School’s design and visual communications department received a $10,000 grant to design a pedestrian alert system for Ethiopia’s capital city, local officials announced recently. Newton North is one of 16 high schools nationwide that received a grant, aimed at inspiring young inventors, through the Massachusetts Institute of Technology’s School of Engineering. As part of the Lemelson-MIT InvenTeam grants, professional engineers, scientists and MIT alumni work with the students. Beaver Country Day School in Chestnut Hill and Natick High School were also among the grant recipients, according to the Lemelson-MIT website. Newton North’s alert system will help pedestrians in Addis Ababa cross dangerous roads safely, warn drivers of crossing pedestrians, and create a protected area for walkers, according to the district’s announcement. The students plan to use recycled automotive parts and solar-powered systems to minimize the environmental impact of their project.