The TUTOR Manual.

The TUTOR logic-building language to be used with the PLATO (Programmed Logic for Automated Teaching Operations) system is explained in this manual. TUTOR is designed to transcend the difficulties of FORTRAN for a computer-based educational system utilizing graphical screen displays. The language consists of about seventy words or "commands" which can be used in various combinations to produce the desired effect. It was designed specifically for use by lesson authors lacking prior knowledge of and experience with computers. Although authors are able to write parts of useful lessons after approximately ae hour of introduction to TUTOR, the ultimate complexity and flexibility of TUTOR lessons is limited largely by the ingenuity and experience of lesson authors. A sample TUTOR program which allows the student to construct geometric shapes on his television screen demonstrates how a TUTOR lesson appears to the student. A complete description of the structure and elements of the language is presented, as well as a description of methods for inputting lessons and obtaining output. The manual is intended to be used as a textbook by the beginning lesson author and as a reference tool by the experienced TUTOR user. (iT)