Complete lesson PPT with learning outcomes, new knowledge and activities detailed on the slides. There is also a link to the BBC Bitesize video-clip, Fertilisation, narrated by David Attenborough. The resource is designed to be used with the Activate B1 3.2 Activity Sheet (Male and Female Reproductive Systems), B1 3.2 Teacher and Technician Notes, and pages 42 & 43 of the blue Activate 1 KS3 Science Textbook. A student table is included to be used with the plenary slide. The lesson is ready to go and is designed to support pupils aiming for developing and secure outcomes. All pupils should be able to name the main structures of the male and female reproductive systems; most pupils should also be able to state a function of the main structures of these reproductive systems; whilst some pupils should, in addition, be able to describe the main structures in the male and female reproductive systems. Keywords include sperm cell, testes, scrotum, semen, egg cell, ovary, oviduct, and uterus.