The document outlines the four stages of a butterfly's life cycle: (1) Egg Stage, where the female butterfly lays eggs on leaves; (2) Larva Stage, where caterpillars hatch from eggs and molt as they eat leaves; (3) Pupa Stage, where caterpillars form hard chrysalises and undergo transformation; and (4) Adult Stage, where fully-formed butterflies emerge from chrysalises. The document also proposes using a PowerPoint presentation to teach students about this life cycle, followed by decoding and encoding activities to reinforce understanding.