The Primary Department has eleven (11) primary teachers and three (3) student assistants who assist the grade 1 teachers.
All members of the faculty are trained to become effective and efficient teachers. During summer, teachers attend the intensive training, seminars and workshops to prepare them for the school year. Ecumenical retreat and team building activities were also done to ensure that there will be a cohesive relationship that is very essential in the organization and in the school. The faculty provides "total education" to the students, which extends beyond the PNJK-IS room to include social, moral, and emotional growth.
The Primary Department is located at the Uchida Building. It is a 2-storey building with air- conditioned classrooms equipped with a 50-inched LED TV which is one of the tools of the teachers in classroom instructions. The grade 1 and grade 2 classrooms are located at the ground floor. Grade 3 and one Grade 2 classrooms are located at the 2 nd floor, as well as the two special classrooms which are used for the special classes in Nihongo, English and Filipino for our international students. The faculty room is also located at the 2nd floor of Uchida Building. The primary pupils are also provided with a playpen. It is where the pupils gather during lunch time to play mind games and watch educational movies. The playpen is provided with three (3) big slides, two (2) small slides and four (4) seesaws that are being used during their P.E. time.
The Department Head and the Subject Area Coordinators monitor the translation of the VMGO and the learning competencies into the classroom instructions.
As the world changes, so must PNJK-IS. The school management is dedicated towards ensuring that the curriculum, teaching methods and the infrastructure are upgraded and are kept up-to-date, to keep pace with the rapid changes taking place in the education field.