Natural science: Reproduction Year 6 of Primary Education CLIL resource

1. by Rafael
Rodríguez
Pérez
PRESENTATION without answers

3. Look at this word and complete the chart.
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What I know
What my partner and I
know
What my group knows

4. - Reproduction is the basic life process that living things have to
create new organisms similar to themselves.
Dictation.
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5. - Reproduction is the basic life process that living things have to
create new organisms similar to themselves.
Dictation.
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In pairs, draw a woman or man
(your teacher will choose). Later,
make a couple with another pair’s
man or woman. Look at the
adults’ physical characteristics
and draw their possible child.
Remember that the child needs to
be similar to his/her parents.
Work in pairs and, later, in
groups.

7. PRIMARY SEXUAL CHARACTERISTICS
These are the reproductive organs, also known as the genital
organs. We are born with these characteristics.
Look, read and answer.
1
female male
- What are the differences between boys’ primary sexual
characteristics and girls’ primary sexual characteristics?

8. more developed muscles – breasts – more body hair – facial hair
– higher voice – less body hair – deeper voice – wider hips
Secondary sexual characteristics make men and women’s bodies
more different. Classify these into male and female.
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9. • Men: facial hair, deeper voice, more body hair, more developed muscles.
• Women: Breasts, wider hips, higher voice, less body hair.
In pairs, explain why each of these secondary sexual characteristic
appears.
1
from 12 to 16
years old
from 10 to 14
years old

10. - What is puberty? Explain to one another in pairs. Later, explain
to one another in groups. Finally, find the best explanation for
puberty and tell the rest of the class.
Watch these two videos and answer.
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Puberty in boys Puberty in girls

11. Puberty is the stage of life when reproductive organs start
working and secondary sexual characteristics develop.
Puberty may take place between the ages of 10 and 14 in
girls, and 12 and 16 in boys. However, these ages differ from
person to person.
Puberty also causes emotional changes. Our mood can
change quickly, and we become more sensitive and self-
conscious. Be careful because emotional changes may cause
confusion and anxiety.
During puberty, talking to your parents or an adult friend
about feelings is a very good idea.
Read cooperatively, think and discuss.
1

13. a. They contain the female sex cells (egg cells or ova).
b. It is the external part of the female reproductive system. It
is formed by folds of skin called labia. It protects the
opening of the vagina and the urethra through which
urine is expelled.
c. They are fine tubes that connect the testes to the urethra.
d. It produces liquids which help to transport spermatozoa
and give them nutrients. The mixture of these liquids and
sperm is called semen.
e. They connect the ovaries to the uterus.
f. It is a hollow organ with a muscular wall. The baby
develops here during pregnancy.
g. They produce sperm, which contains the male sex cells
(sperm cell or spermatozoa).
h. It is a tube that transports semen to the outside of the
body. It also expels urine.
i. It is a muscular tube between the uterus and the outside
of the body.
j. It is the organ that contains the urethra.
1-2-group work. Look at these pictures and read the descriptions of
its parts. Match each part and it description.
2

14. FEMALE GENITALS
a. The __________ contain the female sex cells, called egg cells
or ova.
b. The __________ is a hollow, muscular organ where the baby
develops during pregnancy.
c. The __________ is a muscular tube between the uterus and
the outside of the body.
d. The __________ connect the ovaries to the uterus.
e. The __________ is the external, protective organ of the
female reproductive system.
Group work. Make a poster of the reproductive systems with
flaps. Each flap must contain the description of one part so
that you can read it when you open it.
2
Complete these sentences about the reproductive systems.

15. MALE GENITALS
a. The __________ produce male sex cells called sperm cells or
spermatozoa.
b. The __________ connect the testes and the urethra.
c. The __________ produces liquids to transport sperm cells.
d. The __________ transports semen and urine.
e. The __________ is an external organ of the male reproductive
system.
2
Complete these sentences about the reproductive systems.

17. Sex cells are an essential part of reproduction. They are
produced in the reproductive system and are different in men
and women.
3
Read, look and guess. What is the male sex cell? And the female
one?
MALE
FEMALE
egg cell spermatozoon

18. 3
Watch this video and discuss.
‘Miracle’ of life

19. a. They are found in the ovaries from birth. ______
b. They are large, round cells that can be seen with the naked eye. ______
c. They are produced in testes, starting at puberty. ______
d. They contain all the nutrients for the development of an embryo. ______
e. They are very small and can only be seen under a microscope. ______
f. They have a small head and a long tail which they use to move. ______
g. They mature during puberty. ______
3
Look at the sex cells and write OVA or SPERMATOZOA next to
each sentence.
egg cell spermatozoon

20. a. They are found in the ovaries from birth. ______
b. They are large, round cells that can be seen with the naked eye. ______
c. They are produced in testes, starting at puberty. ______
d. They contain all the nutrients for the development of an embryo. ______
e. They are very small and can only be seen under a microscope. ______
f. They have a small head and a long tail which they use to move. ______
g. They mature during puberty. ______
3
Look at the sex cells and write OVA or SPERMATOZOA next to
each sentence.
egg cell spermatozoon
Make up a
complementary
poster about sex
cells for your
reproductive
system one.

21. - Fertilization occurs when a sperm cell
joins an egg cell.
- Semen gets into the woman’s vagina.
- The spermatozoa travel through her
uterus into the Fallopian tubes.
- If, at the same time, ovulation takes
place and an egg cell is released from
one of the ovaries to the Fallopian
tube, fertilization can occur.
- If fertilization occurs, a new cell,
called zygote, is formed.
- The zygote divides into more cells
and they form an embryo.
- The embryo goes to the uterus,
where it attaches itself to the wall
and continues to grow.
3
In pairs, prepare an explanation about fertilization and the
development of the embryo. You can use this picture, the information
below and your creativity.
Extra
idea!
You can use
paper puppets
attached to a
lollipop stick.

23. - Do you know any case of pregnancy? Speak about it.
- How long does a human pregnancy last?
4
Class chat.

24. 4
Work in pairs. Make up an information leaflet about ‘A
Healthy Pregnancy’ for pregnant women. You can use this doctor’s
advice.
DOCTOR’S ADVICE FOR A HEALTHY
PREGNANCY
Staying healthy during pregnancy is
crucial for the mother and baby. Here is
some advice for a healthy pregnancy:
- Eat a balanced diet, high in proteins,
calcium and iron.
- Drink plenty of water.
- Exercise regularly, but don’t do
intense and high-impact activities.
- Rest and sleep.
- Don’t drink alcohol or smoke.
LANGUAGE
HELP
- You should…
- You shouldn’t…

25. - Write 8 questions, at least.
- Use past simple:
4
Write an interview to your mother about her pregnancy. Interview
her and write her answers.
SUBJECT
VERB + ED
Irregular past
simple form
OBJECTS AND
COMPLEMENTS
SUBJECT VERB
OBJECTS AND
COMPLEMENTS
DID ?
SUBJECT
OBJECTS AND
COMPLEMENTS
DIDN’T VERB
AFFIRMATIVE
NEGATIVE
INTERROGATIVE
Example: My mother wanted chocolate all the time.
Example: My mother didn’t want chocolate all the time.
Example: Did my mother want chocolate all the time?

26. a. The embryo is surrounded by a sac
called the umbilical cord, which is
filled with liquid and provides
protection.
b. A new organ, called the amnion,
forms inside the uterus. It provides
nutrients and oxygen from the
mother to the zygote. It eliminates
waste products produced by the
embryo.
c. The embryo and the placenta are
connected by the uterus.
d. The initial embryo becomes a sperm
cell, and at about 3 months, all the
body parts can be distinguished.
4
Look at the picture, read and find 5 errors.

27. When there are complications during
labour, a doctor performs a caesarean
section to remove the baby directly from
the mother’s uterus.
4
Watch this video
about birth and discuss.
Labour and delivery during
vaginal child birth
Read and write sentences about the
advantages and disadvantages of a
caesarean section.

28. A UNIQUE EXPERIENCE
Giving birth to a child is a special and unique experience. After waiting
anxiously for months, the parents finally get to see their new baby.
However, giving birth was more difficult in the past. Labour was painful
and dangerous in many ways. Today, the pain can be controlled with
anaesthesias which eliminate the mother’s pain, but allow her to remain
conscious during the birth of her child.
In addition, thanks to many medical advances, risks to mother and baby
can be monitored and often avoided, making the birth process much safer.
Even simple improvements in hygiene have dramatically reduced the risk of
infections during birth.
- Why is giving birth a unique experience?
- How was labour different in the past?
- What makes it less painful and safer today?
- Why has the risk of infections decreased?
- Do you think fathers are more involved in the birth process today? Why?
4
Read and answer.

29. Lactation is the period when the mother’s breasts produce milk. It
happens after giving birth.
Breast milk provides all the nutrients that a baby needs to grow, and
substances that protect against diseases. Breastfeeding consists of the
baby feeding on its mother’s milk. This is the best way to feed a baby,
but babies can also be fed artificial milk, called formula milk.
4
Read about lactation and debate.
breastfeeding formula milk

30. Jigsaw technique. Complete the unit diagram.
Sexual
characteristics
We are born
with them.
They develop
during
puberty.
Reproductive
systems
Male
Female
Sex cells
Male
produced in
_______
Female
produced in
_______
Fertilization
Pregnancy
lasts ___
months.