Grade 4English

Hygiene & Sanitation

Personal and environmental hygiene; functional writing — posters and notices.

📖 6 min read · 3 worked examples · 8 practice questions

📚 Practise Hygiene & Sanitation with the AI tutor
Free email sign-in · AI tutor in English, Kiswahili or Sheng
Get started →

The lesson

Hygiene means keeping ourselves clean. That means washing our hands with soap before eating, brushing our teeth, and taking a bath every day. It helps keep germs away from our bodies. Sanitation is different — it is about keeping our surroundings clean. For example, sweeping the compound, picking up trash, and making sure our latrines are clean. Both hygiene and sanitation work together to keep us healthy. When we practice good hygiene and sanitation, we prevent diseases like diarrhea and cholera. These are serious illnesses, but they can be stopped by simply staying clean — both our bodies and our environment. Remember: hygiene is personal cleanliness, sanitation is environmental cleanliness. Together, they keep us strong and healthy!

'Hygiene' means keeping our bodies and our surroundings clean. When we practice good hygiene, we get some wonderful rewards. Benefit number one: Stay Healthy. When we wash our hands with soap and water, we chase away germs that make us sick. Fewer sick days mean more time for school and play – more time to learn new things and play football with your friends! Benefit number two: Feel Good. When you wear clean clothes and have a clean body, you feel fresh and confident. Think of that nice smell after a shower – you feel ready to meet the day. Good hygiene helps us feel good about ourselves. Benefit number three: Help Others. When we keep our environment clean – like our classroom, our home, and our community – we make it safe for everyone. Less rubbish means fewer places for mosquitoes to breed, and that protects everyone from diseases like malaria. By practicing good hygiene, you are a hero to your family and friends. Remember: good hygiene keeps us healthy, makes us feel good, and helps the people around us. Let's all try to make good hygiene a daily habit. Great job, everyone!

Can anyone guess what a notice is? A notice is a short message that shares important news with many people. For example, if school is closed tomorrow, the head teacher puts up a notice on the board. Or if there is a meeting for parents, a notice tells them when and where. Notices help us stay informed. The purpose of a notice is very simple: it tells people important information. At the examples here: 'No littering' tells us to keep the compound clean. These short messages help everyone know what is happening. Every notice has four important parts. First, the date — when was it written? Second, the title — for example, 'Clean-Up Day'. Third, the message — the actual news. Fourth, the signature — who wrote it, like the Head Teacher. Here is a notice from Nairobi Primary School. Carefully: it says '5th May 2025' — that is the date. The title is 'Clean-Up Day'. The message tells us: 'Clean-Up Day on Friday, 10th May. Bring a broom!' And at the bottom, we see '— Head Teacher' — that is the signature. You know the four parts of a notice!

Let's learn how to keep our home and school compound clean. A clean compound keeps us healthy and happy! First, we must sweep the compound every day. Sweeping removes dirt, leaves, and rubbish. When we sweep daily, our compound looks neat and we avoid breathing in dust. Next, we empty the dustbins into the main bin. Why do we do this? Because if we leave rubbish in the bins, it attracts pests like rats and cockroaches. Those pests can carry diseases. Always empty the bins! Finally, we must not let water collect in old tires, cans, or any containers. Standing water becomes a home for mosquitoes. Mosquitoes can give us malaria, a very serious sickness. Drain or cover any containers that hold water. To keep our compound clean, remember three things: sweep daily, empty dustbins, and remove standing water. These simple steps keep pests away and help us stay healthy!

Great work, everyone! First, remember the difference: Hygiene means keeping your body clean – like washing your hands and brushing your teeth. Sanitation means keeping your environment clean – like the compound, latrines, and the community. Next, the key actions: Wash your hands properly with soap and water. Clean your home every day. Keep the compound tidy so germs can't hide. These simple habits help us stay healthy. Finally, spread the word! You can teach your friends and family what you learned today. Use posters or notice boards to remind everyone about hygiene and sanitation. The more people know, the healthier our community will be. Done, class! You have learned so much. I hope you will use these lessons every day to keep yourselves and the community safe from diseases.

Worked examples

The Dirty Cup

Class, let's look at our first worked example together. I call this one 'The Dirty Cup'. Imagine this — John drinks some uji from a cup, but he forgets to wash it right away. The leftover uji sits there, and germs start to grow. What does John do? He follows three simple steps. Step one: rinse the cup with clean water to get the big pieces out. Step two: scrub with soap — the soap breaks down the leftover germs so they can't make us sick. Step three: rinse again with clean water to wash all the soap and germs away. Simple, right? Imagine it's that cup. Soap is like a little army that fights the germs. The first rinse clears the battlefield, the soap fights the germs, and the final rinse sweeps everything away. Your cup is now clean and safe for your next drink. Remember — rinse, scrub, rinse again. That's all it takes. Let's think about why we do each step. Any ideas?

Handwashing Steps

First step: Wet your hands with clean water and apply soap. Make sure the water is running. Second step: Scrub your hands for 20 seconds. To time yourself, sing 'Happy Birthday' twice slowly. Scrub every part of your hands. Don't forget to clean between your fingers, under your nails, and your wrists. Those are places where germs like to hide. Third step: Rinse your hands well with clean water, then dry them with a clean towel or let them air dry. That's how you wash your hands properly! Practice these steps every time. Done, everyone!

Making a Poster

Our third worked example: making a poster. The title is 'Keep Our School Clean!'. A good poster has a big, clear title so everyone knows the message. Here we have a bin and a broom. The bin reminds us to put rubbish inside, and the broom reminds us to sweep every day. These pictures help people understand the message. At this child. He is throwing rubbish into the bin. That's exactly what we should do to keep our school clean! Pictures with actions are very powerful. The poster includes short messages: 'Use the bin!' and 'Sweep every day!'. These are action words that tell us exactly what to do. Remember these tips when you make your own poster.

Practice questions

  • Let's start with question one: 'Why is it important to wash your hands before eating?
  • 'Which of the following are good hygiene habits?
  • Great work, everyone! These two questions remind us of the most important hygiene habits: wash your hands before eating, bathe every day, and always wash your hands after using the toilet.
  • First up is the poster about handwashing. Remember: posters use pictures and short, clear phrases.
  • You will write a notice about cleaning the latrines. A notice gives clear steps.
  • Remember these three things: pictures, words, and your readers. Who will see your work?
  • For the second question: which notices tell you about safety? You should have chosen A and B – 'Warning: Wet Floor' warns about a slippery floor, and 'No Running in the Hall' helps prevent accidents.
  • What did we learn? Posters and notices have a purpose.

Ask the tutor

  • Explain What is Hygiene & Sanitation? in simple words.
  • Give me 3 worked examples on What is Hygiene & Sanitation?.
  • Quiz me with 5 questions on What is Hygiene & Sanitation?.
  • What's the most common mistake students make on What is Hygiene & Sanitation??
Sign up for a CBC AI tutor →

Free email sign-up — the tutor answers in English, Kiswahili or Sheng and walks you through hygiene & sanitation step by step.

Keep going in English5 more