MacArthur High School in the Irving Independent School District is getting ready to break ground on a School of Business and Entrepreneurship. The addition will expand a program that is giving high school students a step up the business ladder.” I get the satisfaction of seeing the future in my classroom,” said Kelley Watson, who leads the Incubator 2 program. The class teaches advanced business students how to start a business — from plan, to pitch, to funding, to launch.