The document discusses a lesson on sex cells. It will cover the basic features and adaptations of sperm and eggs, how fertilization takes place, and the process of fertilization in detail. Students will label diagrams of sperm and eggs and discuss their structures and where they are produced. The lesson will also cover the roles of sperm and eggs in fertilization through activities like describing a "Situations Vacant" job posting for a sperm or egg.

1. To know the adaptations and job of
sex cells.
• What do you think
you will learn about
in todays lesson?
1. _______
2. _______
3. _______

2. To know the adaptations and job of
sex cells.
• All: State some basic features of sex cells and
outline how fertilisation takes place.
• Most: Describe adaptations of sex cells and
how fertilisation happens in humans.
• Some: Relate the structure of sex cells to their
function and explain the process of
fertilisation in detail.

3. To know the adaptations and job of
sex cells.
• Draw the male and female sex cells and label
them.
• What do you already know about them?
• Where are they made?
• What special features do they have?
On mini
whiteboards!

4. Sex cells - Sperm
In males the sex cells are called sperm.
Sperm are produced in sex organs called testes.
To know the adaptations and job of
sex cells.

5. Sex cells - Eggs
In females the sex cells are called eggs.
Eggs are produced in sex organs called ovaries.
Nucleus
containing
chromosomes
cytoplasm
membrane
jelly coat
An egg is so big that this is how big a
sperm looks next to it.
The egg is 30 times bigger!
To know the adaptations and job of
sex cells.

6. 1. Sperm
2. Egg
Gametes (sex cells)
nucleus, cell membrane, cytoplasm, protective layer
nucleus, cell membrane, tail, head, middle section

7. Sperm or Egg?
To know the adaptations and job of sex cells.

8. To know the adaptations and job of
sex cells.
• What is
FERTILISATION?
http://www.youtube.com/watch?v=vXNaTRs8
3hE&NR=1
http://www.tes.co.uk/teaching-
resource/Human-fertilisation-6170761/

9. Fertilisation and Implantation
To know the adaptations and job of sex cells.

10. To know the adaptations and job of
sex cells.
• All: State some basic
features of sex cells and
outline how fertilisation
takes place.
• Most: Describe adaptations
of sex cells and how
fertilisation happens in
humans.
• Some: Relate the structure
of sex cells to their function
and explain the process of
fertilisation in detail.
Situations vacant-
• Write a job description
either for an egg or
sperm.
• Read to your partner.
• Can they guess the sex
cell?
• How would they improve
it?

11. • Success criteria- Situations vacant-
• Write a job
description either for
an egg or sperm.
• Read to your partner.
• Can they guess the
sex cell?
• How would they
improve it?
To know the adaptations and job of
sex cells.

12. To know the adaptations and job of
sex cells.
Sperm
cells
Egg cells
have
are
join
a tail
a large
cytoplasm
produced
with an
egg cell
because
in
to make
it is used as a energy source
for the fertilised egg to
develop
the ovaries
a fertilised egg cell.
this develops into the
embryo.
they need to swim up into the
uterus.
the testes

13. egg tube / fallopian tube
gland
sperm
egg
hormone
ovary
testis menstruation
ovulation
cervix
scrotum
penis
puberty
vagina
womb / uterus
fertilisation
labour
amniotic fluid
umbilical cord
placenta
Choose 6 words and write them in your bingo card