My Body and Good Health
Primary 3 · Science and Elementary Technology
My Body and Good Health
Lesson 3 of 3
13 min
Let's begin
Uwase is at the market with her mother. The stalls are piled high: sweet potatoes, beans, dodo leaves, tomatoes, small dried fish, ripe bananas, a tray of eggs.
“Choose the food for supper,” says her mother. “But choose well — your body needs three different jobs done tonight.”
Three jobs? Uwase does not know what she means. You are about to find out, and then you can help her fill the basket.
Think about a jiko. To cook, you need charcoal — that is the fuel that makes the heat. But charcoal alone will not build you a house; for that you need bricks. And neither one will keep the rain off you; for that you need a roof.
Your body is the same. It needs three kinds of food, and each one does a job the others cannot do.
These give you the power to run, to walk to school, to carry water, to think, and to keep your heart beating all night while you sleep.
Energy foods: ibirayi (potatoes), sweet potatoes, cassava, rice, maize and ubugali, bread, cooking bananas, sorghum, sugar and cooking oil.
Without enough energy food you feel weak and tired, and you cannot play or concentrate in class.
These build new parts of you. You are growing right now: your bones are getting longer, your muscles are getting stronger, and if you cut your knee, your body must build new skin over it. All of that needs bricks.
Body-building foods: beans, peas, soya, groundnuts, eggs, milk, meat, chicken and fish — like the small isambaza from Lake Kivu.
A child who eats energy food but almost no body-building food does not grow well, and stays small and weak.
These do not build you and they do not fuel you. They protect you: they help your body fight off illness, help your eyes see well, keep your gums healthy, and help cuts heal.
Protective foods: fruits and vegetables. Dodo and other green leaves, cabbage, carrots, tomatoes, onions, oranges, mangoes, passion fruit, pineapple. Clean water belongs with them as the drink your body must have every single day.
Children who never eat fruit or vegetables catch illnesses easily and take longer to get better.
Some foods are helpful in more than one group. Beans are mainly body-building, but they give you some energy too. Milk builds you and also protects you. That is fine — but you must still eat from all three groups, because no single food does everything.
A balanced meal has something from each of the three groups, plus clean water.
Uwase serves herself: rice, boiled ibirayi, and a piece of cassava. She says, “Look at all this food! My plate is full.” Is her meal balanced?
Step 1 — Sort each food into its group.
Step 2 — Tick off the three groups. Energy: yes, three times over. Body-building: none. Protective: none.
Step 3 — Decide. Her plate is full but it is not balanced. Full and balanced are not the same thing! She has plenty of fuel and no bricks and no roof.
Step 4 — Fix it. She does not need more rice. She needs to swap some of it for what is missing: take away the cassava, and add beans (body-building) and some cooked dodo leaves or a tomato (protective). Now her plate has all three groups. Add a cup of clean water and supper is complete.
Tip
Fuel, Bricks, Roof. Three words, three groups:
Go, Grow, Guard. Say it while you look down at your plate: “Which one is missing?”
Work each one out first, then check.
Answers
What you learned today
Quick check
Match each food to its group.
Tap one on the left, then its partner on the right.