Discuss the role of models in science, in particular, the different models of the brain students use in this unit.
Draw students' attention to the Key Ideas using means such as posters and overhead transparencies.
Have students complete Activity 2-1: Big Brain on a Stick. The construction of the model is time consuming but is worthwhile, and it is used throughout the unit. The model enables students to learn about the structure of the brain and the spinal cord.
Complete Activity 2-2: Thinking Cap to help students relate the different parts of the brain to their functions.
Time permitting select from unit projects.
Throughout and at the end of the section refocus students' attention on the Key Ideas.
Brain Study Students do library research about MRI scans, CAT scans, and PET scans and write a report about their findings.