Achievement approaching mastery in the use of at least one modern foreign language on the part of a large portion of tomorrow's citizens is an objective which is new in American education. Language programs in the high school are therefore undergoing basic modifications in order to establish learning conditions that can develop communication skills. The prime essentials of an effective program of modern foreign language instruction are long sequences of study and systematic practice in listening and speaking, as well as in reading and writing. Since hearing-speaking-reading-writing progression in language learning brings problems to teachers whose principal approach to instruction has been a grammar-translation-reading presentation, this bulletin is offered to high-school teachers as a service of the Science, Mathematics, and Foreign Language Section of the Division of State and Local School Systems, under title III of the National Defense Education Act of 1958. The teaching techniques described in this bulletin are intended for beginning classes at the secondary school level. It is assumed, however, that high schools will provide for the continued progress of any pupils who may have entered from the elementary school with considerable proficiency already in speaking and understanding a modern foreign language. (Contains 2 footnotes.) [Best copy available has been provided.]