Tone in language refers to the pitch and intonation patterns used to convey meaning, emotion, and emphasis in speech. Tone can change the meaning of a word or sentence, especially in tonal languages like Chinese. In English, tone is important for expressing attitudes, feelings, and nuances. Teaching tone involves helping students recognize and produce different pitch patterns, practice intonation in various contexts, and understand how tone affects communication. Activities might include listening exercises, mimicry, and practicing dialogues with varying emotional tones.