Reproduction: Reproductive System and Sex Cells

Topics: Reproductive system, Reproduction, Gamete Pages: 35 (4946 words) Published: February 12, 2013

7B Reproduction

About the Unit

This Unit covers human reproduction and development.

The Unit starts with an overview of what reproduction is and considers different modes of reproduction in animals. Human reproductive organs are then covered, along with adaptations of sex cells. This is followed by a look at sexual intercourse, the menstrual cycle, pregnancy and birth. The Unit ends with puberty and adolescence, a stage which many pupils will be going through or just about to start. Some teachers may wish to teach these topics in a different order from the one in the Pupils' Book to link with the school's PSHE policy. The combination of single and double page spreads and the segmentation of this Unit into the topics listed below allow flexibility of teaching order to accommodate individual schools' requirements.

Options for further study within this unit are based on the questions that teachers are most commonly asked by pupils. These include IVF treatment, Siamese twins, acne, cervical cancer and smear testing, contraception and STDs, developmental milestones in babies and in-vitro fertilisation.

Much of the way this Unit is taught will depend on individual schools' PSHE policies. There is also much in the way of suggested discussion material which will need to be handled with sensitivity and tact.

There is a fair amount of material in topic 7Be and teachers may wish to look through the materials provided for this unit and allot more time to the teaching of this topic than some of the others.

• Topic 7Ba covers reproduction in animals, including an introduction to some of the most important words met in the rest of the Unit. • Topic 7Bb deals with the names, locations and functions of the human reproductive organs, and the adaptations of the sex cells. Extension work is provided on cervical cancer.

• Topic 7Bc covers sexual intercourse. Extension work is provided on IVF, contraception and STDs. • Topic 7Bd deals with the menstrual cycle and pregnancy. There is extension work on fetal development. • Topic 7Be completes this Unit by looking at birth and growth and development in humans. There is an Scl-type investigation, relating to emotional changes with age, based on a survey and interpretation of results. A sheet of level descriptions is provided.


Prior Knowledge

From KS2/previous units most pupils will:
• recognise the main stages in the growth and development of humans • understand that cells are adapted to their functions.

Life processes and living things
At the end of this Unit:
All pupils must: be able to name and identify the main reproductive organs; know that an egg cell and sperm cell fuse in fertilisation; be able to explain the role of the placenta in pregnancy. Most pupils should: know the main reproductive organs and be able to explain their functions; be able to describe egg and sperm cells and some of their adaptations; know that in fertilisation two cell nuclei fuse; know about the differences in gestation periods and length of dependency between humans and other mammals; explain the menstrual cycle.

Some pupils could: know all the adaptations of sperm and egg cells; explain how sperm and egg cells contain the information required for new life.

Scientific enquiry

This Unit offers pupils the opportunity to develop and demonstrate skills in: finding information about reproduction from secondary sources; presenting data in graphs and bar charts and interpreting these; explaining the importance of a suitable sample size; explaining how reproduction was thought to happen before sex cells were understood. |Unit:7B | |Topic |Learning objectives |Pupil's book |Starters...
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