To serve emotionally disturbed adolescents in a residential treatment program, an educational cadre was formed to function as a diagnostic, teaching, and research instrument. Specialists in addition to classroom teachers included a curriculum specialist, a cognitive psychologist, and a psychiatric clinician. Experimental curriculum units in…

This paper describes the past assumptions about the mismatch of child language and school language, noting the distance principle, the characteristics of language interference and the various treatments that have been hypothesized. Past research involving language mismatch and reading is reviewed, and it is noted that even though the best evidence…

Errors in second language learning are viewed as evidence of the learner's hypotheses and strategies about the new data. Error observation and analysis are important to the formulation of theories about language learning and the preparation of teaching materials. Learning a second language proceeds by a series of approximative reorganizations…