Theological Education by Extension (TEE) are program materials provided by the Study by Extension for All Nations or SEAN UK that helps mobilize church growth, evangelism, discipleship, and ministry training. TEE also enables the church by multiplying Christian workers, and preparing pastors, church leaders, and ministry workers. It is an effective but low-cost system of learning and training within the local context, modeled on small groups led by trained tutors – compared, for instance, with the expensive and non-localized option of college courses.

TEE currently offers two program courses. These are the Life of Christ (LOC) and Paul’s Life and Letters (PLL).

The Life of Christ (LOC) is a discipleship and training course in pastoral theology based on the Book of Matthew, structured to study Christ’s life in a correct sequence. This course aims to introduce the student to all the basic disciplines of the Christian life and ministry, providing a thorough knowledge of Christ's life and ministry, a comparative analysis of the four Gospels, the Old Testament background to Christ's ministry, the techniques of study, reflection and application, an outline of systematic theology, and a comparison of Christianity with other religions. It also emphasizes practical ministry in the local church, including active participation in group studies, individual and group Bible studies, personal evangelism, stewardship, preaching, developing devotionals, family worship and counseling, planting a new church, dealing with the occult, Baptism, the Lord's Supper, discipline in the church, relationships, marriage and the family social reform and direct help, and psychological adjustments. It consists of 6 consecutive books, arranged in units, studying each unit for 2-3 hours. After each unit, there is a group meeting, which is an essential part of the course. It greatly enriches the learning process and enables and enhances the application of theory to practice in the local church setting.

On the other hand, Paul’s Life and Letters (LOC) focuses on Paul’s triumph and struggles for the Great Commission, studying his letters to different churches, and giving us a perspective of what happened in his missionary journeys.

TEE programs aim to provide, from the scriptures and guided by the Holy Spirit, the tools, materials, and structures needed for realistic in-service training of members and leaders of local congregations. Through this, they grow and mature in their faith, as well as discover and develop their gifts to exercise it for a more effective ministry, glorifying God both at church and the world.