ClassBadges is a free online tool where teachers can award badges to students for accomplishments or academic mastery.
Through your teacher account, you can award badges customized for your classroom or school. Badges can easily be aligned to academic goals or associated with existing school awards.
You set the learning targets for each badge, give the badge a name and choose a logo for it, and then award the badge to each student once they accomplish it. Students can track their results, compare their results to others, and work towards earning their next badge.
More information about badges in education: