Lesson 3 Investigating Eyesight（第三课调查视力）.pdfVIP

Investigating Eyesight Lesson 3: Activities and optical illusions Brief description Students work through a series of activities to explore their sense of sight. They experience their eyes’ blind spots (where the optic nerve enters the eye), learn to see a stereoscopic 3D cube and discover their dominant eye. They learn to appreciate the brain’s role in vision and enjoy some famous optical illusions. This lesson also presents opportunities to discuss learning styles. Duration: 60 minutes Year Level: Middle to upper primary Topics: The senses, Vision, Optical Illusions Preparation: 10 minutes Overview Whole class Discuss activities (2 – 3 min) You could begin by showing one or two of the optical illusions in the student worksheet on the OHP. You could also discuss where our sense of sight comes from (ie is it just our eyes?) Small groups Activities (small groups or individually) (45 min) Whole class Discuss activities (5 - 10 min) Equipment and preparation Download and photocopy 30 student worksheets Objectives Students’ prior knowledge No prior knowledge is assumed for this lesson. Science concepts Students discover and understand: the brain and eyes work together to give us our sense of sight the eye has a natural blind spot where the optic