1. How does sexual intercourse lead to growing a fetus?
06 April 2019
How does sexual intercourse lead to growing a fetus?
Key terms: sexual intercourse, implantation and pregnancy
All:
I can describe how a woman becomes pregnant after fertilisation and correctly use the term implantation.
Most:
I can recall the names and functions of the structures surrounding the development of the foetus.
Some:
I can describe how identical and non-identical twins occur and describe how materials are supplied and removed from the foetus.
Nucleus , fertilisation, egg, sperm
Starter: Unscramble these words…
sun clue, it retains foil, geg, perms

2. Can you use those words to make a sentence?
Best sentence gets a reward point

3. Key definitions:
Sexual intercourse: or ‘making love’, ‘having sex, during which the semen is ejaculated into the end of the vagina.
Implantation: when an embryo sinks into the lining of the uterus.
Pregnant: when a female animal has an embryo growing inside her uterus.

4. TASK: Fertilisation question grid
M – question grid
I – individually
N – quietly
T – 10 mins
Read the questions then watch the video – do not write anything down.
Re-watch the video and answer the questions.

5. Boardworks KS3 Science 2008 Human Reproduction

6. Boardworks KS3 Science 2008 Human Reproduction

7. TASK: Story of a sperm and egg cell
M – question grid
I – individually
N – quietly
T – 10 mins
Using your question grid
Bronze
Silver
Gold
Write 3 sentences describing the journey of a sperm or egg cell.
Create a flow chart to show the journey of a sperm or egg cell.
Write a paragraph explaining the journey of the sperm or egg cell.

8. TASK: Pregnancy Read p.30-31.
Complete the worksheet to summarise the information read.
M – work sheet
I – individually
N – quietly
T – 10 mins

9. How are twins formed?
Non-identical twins; woman’s ovaries release two eggs, each of which is fertilised.
Identical twins; one fertilised egg cell that splits into two new separate cells.

10. What is IVF?

11. All: Most: Some: Confidence Check Not confident In between
Super confident
All:
I can describe how a woman becomes pregnant after fertilisation and correctly use the term implantation.
Most:
I can recall the names and functions of the structures surrounding the development of the foetus.
Assess pupils by asking them to express their confidence in their achievement from 1-5 for the lesson aims.
Some:
I can describe how identical and non-identical twins occur and describe how materials are supplied and removed from the foetus.

12. Plenary: How do conjoined twins occur?