Meaning Of Illness Basic 3 Social Studies Lesson Note

 WHAT IS ILLNESS?

Illness is when someone is not feeling well or healthy.

Simple definition: Illness means being sick or having something wrong with your body that makes you feel bad.

Other words for illness:

• Sickness
• Disease
• Ailment
• Health problem
• Medical condition

When someone is ill:

• They don’t feel normal
• Their body is not working properly
• They may need medicine or rest
• They may need to see a doctor

1. SIGNS THAT SOMEONE IS ILL

COMMON SIGNS OF ILLNESS:

1. PHYSICAL SIGNS

Things you can see or feel:

• Fever – body feels hot
• Headache – head hurts
• Coughing – making cough sounds
• Sneezing – nose makes sudden loud sounds
• Runny nose – liquid coming from nose
• Stomach ache – belly hurts
• Vomiting – throwing up food
• Rash – red spots on skin
• Tiredness – feeling very weak

Example: Kemi has a fever, headache, and runny nose. She is ill with a cold.

2. BEHAVIORAL SIGNS

Changes in how someone acts:

• Not wanting to eat food
• Sleeping more than usual
• Not playing or being active
• Crying more often
• Being cranky or irritable
• Not talking much
• Staying in bed

Example: Tolu usually plays football, but today he just wants to sleep and doesn’t want to eat. He might be getting ill.

1. TYPES OF ILLNESS
2. MINOR ILLNESSES

Small sicknesses that go away quickly:

• Common cold – runny nose, sneezing, cough
• Headache – head pain
• Stomach upset – belly feels bad
• Small cuts – tiny wounds on skin
• Bruises – blue or purple marks from bumps

Characteristics:

• Get better in a few days
• Don’t need to go to hospital
• Can be treated at home
• Not dangerous

Example: Ada has a cold with runny nose and cough. She will feel better in 3-4 days.

2. SERIOUS ILLNESSES

Big sicknesses that need medical help:

• Malaria – fever, shaking, weakness
• Pneumonia – bad cough, difficulty breathing
• Appendicitis – severe stomach pain
• Broken bones – bones crack or break
• High fever – very hot body temperature

Characteristics:

• Take longer to get better
• Need doctor’s treatment
• May need hospital care
• Can be dangerous if not treated

Example: Emeka has malaria with high fever and shaking. He needs to see a doctor immediately.

3. CHRONIC ILLNESSES

Long-lasting sicknesses:

• Asthma – difficulty breathing sometimes
• Diabetes – problems with blood sugar
• Sickle cell disease – blood problem
• Epilepsy – seizures or fits

Characteristics:

• Last for a very long time
• Need ongoing medical care
• Require special medicines
• People learn to manage them

Example: Sister Funmi has asthma, so she needs to use her inhaler and avoid dusty places.

1. CAUSES OF ILLNESS
2. GERMS AND INFECTIONS

Tiny living things that make us sick:

• Bacteria – very small living things
• Viruses – even smaller than bacteria
• Parasites – worms and other creatures
• Fungi – like mold and yeast

How germs spread:

• Through dirty hands
• Through coughing and sneezing
• Through contaminated food and water
• Through insect bites

Example: Malaria is caused by parasites spread by mosquito bites.

2. ACCIDENTS AND INJURIES

Getting hurt from accidents:

• Falls – falling down and getting hurt
• Cuts – sharp things cutting the skin
• Burns – hot things hurting the skin
• Bumps – hitting hard objects

Example: Bola fell from her bicycle and broke her arm. This is an injury, not a germ illness.

3. POOR HABITS

Bad things we do that make us sick:

• Not washing hands regularly
• Eating dirty food
• Not exercising enough
• Not sleeping enough
• Eating too much junk food

Example: Chidi got stomach ache because he ate food that was not clean.

4. HEREDITARY CAUSES

Illnesses passed from parents to children:

• Some illnesses run in families
• Parents pass them to their children
• Cannot be prevented completely
• Can often be managed with medicine

Example: Taiwo has sickle cell disease because both his parents carry the sickle cell gene.

1. HOW ILLNESS AFFECTS PEOPLE
2. EFFECTS ON THE SICK PERSON

How illness affects the individual:

• Physical discomfort – feeling pain or unwell
• Cannot do normal activities – like playing or studying
• Need rest and medicine
• May miss school or work
• Feel worried or scared

Example: When Amaka has malaria, she cannot go to school, play with friends, or help at home.

2. EFFECTS ON THE FAMILY

How illness affects family members:

• Worry about the sick person
• Take care of the sick family member
• Spend money on medicine and hospital
• Change daily routine
• May catch the illness if it spreads

Example: When baby Kemi is sick, mother cannot go to work because she needs to take care of her.

3. EFFECTS ON SCHOOL

How illness affects education:

• Missing classes and lessons
• Falling behind in studies
• Spreading illness to other pupils
• Teachers worry about sick pupils

Example: Tolu missed one week of school due to illness and now needs extra help to catch up.

1. PREVENTION OF ILLNESS
2. GOOD HYGIENE HABITS

Keeping clean to avoid germs:

• Wash hands frequently with soap
• Brush teeth twice daily
• Take baths regularly
• Keep clothes clean
• Cut nails short and clean

2. HEALTHY EATING

Eating good food to stay strong:

• Eat fruits and vegetables
• Drink clean water
• Avoid dirty food
• Eat balanced meals
• Don’t eat too much junk food

3. GOOD LIVING HABITS

Healthy lifestyle choices:

• Get enough sleep (8-10 hours for children)
• Exercise regularly
• Stay away from sick people
• Use mosquito nets
• Wear clean clothes

4. MEDICAL CARE

Getting proper medical attention:

• See doctor when feeling unwell
• Take medicines as prescribed
• Get vaccinations to prevent diseases
• Go for regular check-ups

CLASS EXERCISES

1. Fill in the blanks:

• Illness means being _______ or having something wrong with your body
• When someone is ill, they don’t feel _______
• A _______ is when your body feels hot
• _______ habits can help prevent illness

2. True or False:

• Illness and sickness mean the same thing: _____
• All illnesses are very dangerous: _____
• Germs can spread through dirty hands: _____
• Only old people get sick: _____
• Good hygiene helps prevent illness: _____

3. List 5 signs that someone is ill:
4. Choose the correct answer: What is a minor illness? a) Broken bone b) Common cold c) Malaria

Which spreads malaria? a) Dirty hands b) Mosquito bites c) Cold weather

What should you do when you feel sick? a) Ignore it b) Tell an adult c) Play harder

5. Match the illness to its type:

• Common cold → Minor illness
• Malaria → _______
• Asthma → _______
• Small cut → _______

6. Circle the causes of illness: Germs, Exercise, Accidents, Clean food, Poor hygiene, Good sleep, Injuries, Hereditary factors
7. List 3 ways illness affects families:
8. Complete these prevention tips:

• Wash _______ frequently with soap
• Eat _______ and vegetables
• Get enough _______ every night
• See a _______ when feeling unwell

9. Answer these questions:

• What is illness? _______
• What are two signs that someone is ill? _______
• How do germs spread? _______
• Why is it important to prevent illness? _______

10. Group these illnesses: Cold, Broken arm, Diabetes, Headache, Pneumonia, Bruise

Minor illnesses: _______ Serious illnesses: _______

11. Scenarios – Identify if the person is ill:

• Mary has fever and headache: _______
• John is running and playing happily: _______
• Peter is vomiting and feels weak: _______
• Jane is sleeping more than usual and won’t eat: _______

12. Write 3 things you can do to stay healthy: