FLES programs are more common than immersion programs. A second language is presented as a distinct subject, much as science or social studies. Typically, the course is taught three to five times per week. Depending on the frequency of the classes and the opportunity for practice, children in these sequential programs may attain substantial proficiency in the language studied. FLEX programs introduce students to other cultures and to language as a general concept.
Time is spent exploring one or more languages or presenting information about language itself.
Although this information may be introduced, the emphasis is not on attaining proficiency. These programs, however, can provide a basis for later learning. In most cases, learning another language enhances a child's English ability. Children can learn much about English by learning the structure of other languages. Common vocabulary also helps children learn the meaning of new words in English.