class (group of students); grade (in school)
班 (Bān) · 10 strokes
Depicts a knife (刂) cutting a gem into two halves (玨), based on the original meaning "to divide". The meaning later shifted to "division", "group", and "team".
级 (jí) · 6 strokes
Phonosemantic compound. 纟 represents the meaning and 及 represents the sound. Simplified form of 級.