This document provides instructions for a lab activity where students will observe protozoa under a microscope by looking at drops of stagnant water placed on a slide. The activity aims for students to understand the importance of microscopic organisms and their shapes, structures and functions. Students are tasked with researching and writing about an algae crop model, conducting the lab which involves placing water drops on a slide, covering with a cover slip, and observing under a microscope while taking notes.