Qualifications for teachers in primary and secondary education TKT TKT is a flexible series of modular teaching qualifications that show how you are developing as a teacher of English. Language for Teaching Language for Teaching develops your teachers’ general English level, as well as providing them with the professional language they need. CELT-P This course is designed specifically to help teachers effectively teach, motivate and engage primary school students. CELT-S This course is designed specifically to help teachers effectively teach, motivate and engage secondary school students. Train the Trainer This practical, intensive course develops your trainers’ skills in delivering training, and supporting, mentoring and giving feedback to teachers. It also enables trainers to deliver CELT-P and CELT-S qualifications.