Nine Michigan high-school seniors enrolled in an International Baccalaureate diploma program will help a group of 60 elementary-school students complete projects on environmental sustainability. Students also will work to educate students about the IB program and Grand Rapids City High Middle School's status as a Center for Economicology, which is defined as economics, environment, ecology, ethics, empathy and education. "These students are ready to lead other kids in the community to have a sustainable lifestyle," school principal Michael Pascoe said.