TIS is a full continuum school that currently offers the following:
- A preschool curriculum (ages 3 to 5) in line with the Primary Years Programme (PYP) of the International Baccalaureate (IB).
- An elementary curriculum, covering grades 1 through 5 (ages 6 to 11) in line with the Primary Years Programme (PYP) of the International Baccalaureate (IB).
- A junior high (middle school) curriculum covering grades 6 through 10 (ages 12 to 16) in line with the Middle Years Programme (MYP) of the International Baccalaureate (IB).
- A high school curriculum covering grades 11 and 12 (ages 17 to 18) in line with the Diploma Programme (DP) of the International Baccalaureate (IB).
