Has correctly determined the either the slope or the intercept, but not both Has incorrectly calculated both. Student makes few or no mistakes in the target language. Student does not use notes during the presentation. Student uses excellent pronunciation. Student uses some originality or imagination in the presentation.
Student speaks most of the time in the target language.
Student may occasionally refer to notes. Student needs some work on pronunciation. Student does not stick to the target language. Student needs notes. Student reads from notes.