Lesson 6 Adaptations of sperm and egg

Students are asked to recall the number of chromosomes in images of different human cells. Answers are animated to appear. Lesson then shows a baby just after birth and the following slides show different stages of development and arrive at a slide of the gametes showing fertilization. The next slide is animated to zoom into the nucleus and 23 chromosomes appear. The next image shows the ovum and the 23 chromosomes animate in. This is used to focus on why the gametes are special and therefore have special adaptations. The following slides are used to teach the adaptation of the gametes. Students are provided with key terms to use to write the adapations of the gametes. A slide of answers for self assessment is included.