THIS CURRICULUM GUIDE, A PRODUCT OF NORTHERN ILLINOIS UNIVERSITY'S PROJECT ENGLISH CENTER, CONSISTS OF FOUR UNITS TO BE INCORPORATED INTO THE CURRICULA OF GRADES 11 AND 12--(1) THE HISTORY OF THE SOUNDS OF ENGLISH, (2) THE DEVELOPMENT OF THE GRAMMATICAL SIGNALS OF MODERN ENGLISH, (3) THE HISTORICAL DEVELOPMENT OF ENGLISH SPELLING, AND (4) ETYMOLOGY. INCLUDED WITH EACH OF THE UNITS ARE (1) OBJECTIVES, (2) AN EXPLANATORY NOTE TO THE TEACHER, (3) SUGGESTED TEACHING SITUATIONS TO WHICH THE UNIT CAN BE ADAPTED, (4) DAILY LESSON PLANS, (5) A DESCRIPTION OF RELEVANT AUDIOVISUAL MATERIALS, AND (6) A BIBLIOGRAPHY. LESSONS DEAL WITH GRIMM'S LAW, THE GREAT VOWEL SHIFT, SOME HISTORICAL EXPLANATIONS FOR THE PRESENT CHAOS IN SPELLING, THE ANALYSIS OF THE ORIGIN OF WORDS, AND CHARACTERISTICS OF INDO-EUROPEAN, GERMANIC, AND OLD, MIDDLE, AND MODERN ENGLISH. (MM)