Earl W. Stevick, Adapting and Writing Language Lessons… (1971)
“ This pass is valid.This pass is not valid. MEANING: One of the passes is defined as valid, the other as not valid. Continue mimicry. After each sentence is mimicked, teacher holds up the appropriate pass. Do same with I.D. cards and other identification. USE: Individual students rule on the validity of the passes held up by the teacher. Individual students rule on the validity of passes offered by other students. CUMULATION: Student asks to see pass, then comments on its validity. ”
