Instruments, such as microscopes or magnetic imaging, allow scientists to increase both the accuracy and depth of their perceptions. Once a situation, object, or behavior is observed, it is important to record that observation, either in writing or in pictures or both. In this activity, students will examine part of a living object, both with the unaided eye and through hand lenses, to gain an understanding of how changing the tools humans use for observation can change our perceptions of an object. Students will also practice recording their observations by drawing sketches. Preparation Before class, obtain several different objects for students to examine.
Instructions Divide the class into pairs and pass out the materials.
Explain that they will be recording their observations of their object within these boxes, and that the boxes represent the students' field of vision. Ask the groups to carefully examine their object. Have them look closely at the shape, color, and texture of the object. Then ask the students to draw what they see in one of the boxes. Have them note any special details in their drawings, and write a brief description of what they see below the box.