Three Cobb high school students Monday were named winners of the 2011 Betty Gray Teacher Education Scholarship for students who aspire to become educators. The students, who are selected from Post 3 schools, will receive a $1,500 scholarship, named for former teacher and board chair Betty Gray. The students are Megan Zhang from Pebblebrook, Justine Nurse McLeoud from McEachern and Jiby Yohannan from South Cobb.