What is described as the language the student understands, while the teacher uses language just above the student's level to promote progression (I + 1)?

• A. The student's current language level
• B. Comprehensible Input
• C. Instructional language
• D. Assessment language

Answer: (B)

Comprehensible input is the language the student can understand in the moment, while the teacher provides input that is just beyond the student’s current ability (i + 1) to push progression. The idea is that learners acquire language best when they can understand most of what’s said, with supportive cues—pictures, gestures, context—to infer the rest, and with just enough challenge to stretch them to the next level. For example, a teacher might use slightly simpler vocabulary or slower speech, accompanied by visuals or demonstrations, then gradually increase complexity as comprehension grows. This focus on understanding now, paired with a touch of higher-level language, is what drives acquisition.

The student’s current language level describes where they stand, not the input process. Instructional language and assessment language refer to the manner of teaching or testing, respectively, and don’t capture the ongoing push of slightly challenging input that facilitates progression.