The medium of instruction was English, as was the fashion till 1945, when all schools had to start to revert to the vernaculars. The class texts were imported from England. "Reading and Thinking" was the reader that was used in the primary section.
English remained the medium of instruction until 1945; after that year, schools were required to use local languages for their curricula. Textbooks came from England. In primary classes, "Reading and Thinking" was used as a reading material.