Its physical plant houses a full curriculum of the basics including physical education, computer education, library, art, and music. The day is extended in the morning and after school for the care of students of working parents. The closed campus allows for a flexible schedule, a uniform lunch program, and provides the Archdiocesan Food Service Hot Lunch Program.

In grades K through 3 a second classroom will be opened for the enrollment of 26 or more students for the same grade. In grades 4 through 8 class size should be 30 students with a maximum of 35 according to the guidelines of the Chicago Archdiocese. Final review will be made by the principal and pastor. A second classroom will be opened for the enrollment of 36 or more students for the same grade.

All regular teachers are certified by the State of Illinois and hold current teaching certificates.

A well-developed parish sports program is available to all students in Grades 4-8. Band, altar servers, children’s choir, and the scouting program are some of the other extracurricular offerings. In addition to daily religion classes, liturgical school celebrations are held regularly. Sacramental preparation and celebration are parish endeavors. All students actively participate in the school curriculum including the religious curriculum. If a student is not baptized as a Catholic, that student is not eligible to receive the sacraments. Each St. Thecla student must have a baptismal certificate on file or a statement saying he/she is not baptized.

Parental involvement is encouraged. Opportunities for service include: the St. Thecla School Advisory Council, the St. Thecla Parish Athletic Council, and the parents’ group – Family School Association (FSA) the Tuition Reduction Program (TRP) component.