Teen Sunday School lessons usually involve a warm-up game or activity, a talk on a biblical topic or passage, and an application to real life. There are a variety of free online resources for teen Sunday School lessons, such TeenSundaySchool.com and the open resources section of the Life Church website.
TeenSundaySchool.com offers free, complete Sunday School lessons on sections of the Bible, as well as resources only accessible by members. Their lessons are in outline form and use activities, object lessons, talking points and discussion questions to study a specific portion of the Bible. This website also includes tabs leading to individual games, and object lessons to use in addition to, or instead of, a full lesson. Membership to this website is $38 per year for an individual or $89 for a group or church, as of July 2015.
Life Church offers free resources for teen Sunday School through its Open Resources page at Open.Church. Lessons are topical and include subjects such as living a Christian life as a teen, sexual purity and integrity, financial management and coping with life stress. These themed lessons are based on biblical views and include teachers' guides and video segments. Life Church provides these lessons in series designed to be used for 4 to 6 weeks in a row.