This hand-drawn educational poster explains the concept of relations and functions in a clear, student-friendly way. Designed like a teacher’s classroom notes on a clean white 8.5×11 page, it uses colorful markers, simple diagrams, and playful doodles to make learning engaging. The poster begins by defining a relation as a set of ordered pairs (x,y)(x, y)(x,y), supported with examples shown as ordered pairs, tables, mapping diagrams, and graphs. It then introduces a function as a special typ