 Many students come to Tatachilla in year 8 from surrounding Lutheran feeder schools, so the middle school is emphasised on getting students comfortable with secondary school.During each year of middle school the students are in the same class for most subjects and have the same teacher for most subjects.In the Senior school students start their South Australian Certificate of Education (SACE) by doing the compulsory SACE subjects in Year 10 (Stage 1 Australian Studies and Stage 1 Work Education).