School or college exercise book, made so that pages can be added to it

摘要

The exercise book (1) has individually printed sheets (2, 3 with holes (5, 6) and a perforation line (8). These are removably stored in a ring binder. The binder can thus be made to contain only material strictly necessary for tuition and not the other material such as work entered by the pupil, which builds up in the course of the school year.