You will need to find diagrams of both spermatogenesis and oogenesis to display as you lecture because the mentioned PowerPoint is not included. Also, your class must have prior knowledge of meiosis prior to hearing this lecture. After they have sketched the steps of the gamete formation process, you will teach them about fertilization. Learners then draw this process as well. More than anything else, this lesson plan can serve as background information for your biology lesson.