Lesson Writing for Teaching Verbal Chains Order in which Elements are Taught Part Ⅳ: Forwards vs. Backwards Chaining

摘要

A poem was examined which had been previously programmed by Gilbert according to the rules of Mathetics at that time. The examination showed that an antithetical program could be produced by fading word elements for the first time in exactly the reverse order from that in which they were faded on the original program.