Lesson Notes By Weeks and Term v5 - Grade 4

Lesson Video

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Performance objectives

• Identify different food groups.
• Explain the importance of a balanced diet.
• List three practices for food safety.
• Describe the dangers of spoiled food.
• Plan a simple, healthy meal.

Lesson summary

This week, we will explore the importance of healthy eating habits and food safety. Making informed food choices is crucial for our physical and mental well-being. In South Africa, many communities face challenges with access to nutritious food, and understanding how to make the best of available resources is essential. Moreover, ensuring our food is safe to eat prevents illness and allows us to thrive. This knowledge empowers us to make positive choices for ourselves and our families, contributing to a healthier South Africa.

Lesson notes

What is a Healthy Diet? A healthy diet means eating a variety of foods from different food groups in the right proportions. It’s like building a house; you need different materials (bricks, wood, cement) to make it strong and complete. Our bodies also need different nutrients (vitamins, minerals, carbohydrates, proteins, fats) to function properly.

Food Groups: These are categories of foods based on their nutritional content.

The main food groups are: Carbohydrates: Provide energy.

Examples: bread, rice, maize meal (pap), potatoes, sweet potatoes. Think of carbohydrates as the petrol that fuels your body.

Proteins: Help build and repair body tissues.

Examples: meat, chicken, fish, eggs, beans, lentils. Proteins are like the bricks that build and repair our bodies.

Fats: Provide energy and help absorb certain vitamins.

Examples: avocado, nuts, seeds, olive oil. Fats are essential, but we need to eat them in moderation.

Vitamins and Minerals: Help our bodies function properly. These are found in fruits and vegetables. Think of vitamins and minerals as the special tools that help everything in our bodies work smoothly.

Examples: spinach, carrots, oranges, bananas, apples.

Balanced Diet: A balanced diet means eating foods from all the food groups in the right amounts. It’s important to not only eat what you like but how much of it you are eating, and what else you are eating.

A balanced diet helps: Give us energy to play, learn, and work. Grow strong and healthy bones and muscles. Prevent illnesses. Help us concentrate better in school.

Example 1: Sipho eats pap (carbohydrate) with stewed chicken (protein) and spinach (vitamins and minerals). This is a good start to a balanced meal! Adding a small amount of avocado (healthy fat) would make it even better.

Example 2: Aisha only eats chips (mostly carbohydrates and unhealthy fats) and sweets. This is not a balanced diet. Aisha needs to include more fruits, vegetables, and protein in her diet.

Food Safety: Keeping Our Food Safe to Eat Food safety means handling and preparing food in a way that prevents it from becoming contaminated with harmful bacteria, viruses, or parasites. Eating contaminated food can lead to food poisoning, which can cause stomach cramps, vomiting, and diarrhea.

Important Food Safety Practices: Wash your hands thoroughly with soap and water before handling food. This is the most important step! Imagine your hands are magnets for germs. Washing removes them. Wash fruits and vegetables thoroughly before eating or cooking. Even if they look clean, they may have dirt or chemicals on them. Cook food thoroughly, especially meat and poultry. This kills harmful bacteria. Use a thermometer if you have one to make sure the inside is properly cooked. Store food properly. Keep perishable foods (like meat, milk, and eggs) refrigerated. This slows down the growth of bacteria. Keep raw and cooked foods separate. Don't use the same cutting board for raw meat and vegetables without washing it first. This prevents cross-contamination. Check the expiry dates on food packages. Expired food may be spoiled and unsafe to eat.

Example 3: Thandi buys chicken from the butcher. She puts it in a plastic bag on top of the bread in her shopping bag. When she gets home, she doesn't wash her hands before making a sandwich. This is NOT safe! The raw chicken could contaminate the bread and Thandi could get sick. She should have used a separate bag for the chicken, washed her hands, and stored the chicken properly in the refrigerator.

Example 4: David helps his mom prepare dinner. He washes the tomatoes and onions before she chops them for the salad. This is a good food safety practice. Guided Practice (With Solutions)

Question 1: List two foods from each of the following food groups: Carbohydrates, Proteins, Fruits.

Solution: Carbohydrates: Pap (maize meal), Bread Proteins: Beans, Chicken Fruits: Oranges, Bananas

Commentary: This question tests understanding of the basic food groups. Learners should be able to recall common food items within each category.

Question 2: Why is it important to wash your hands before preparing food?

Solution: It is important to wash your hands before preparing food to remove any germs or bacteria that may be on your hands. These germs can contaminate the food and make people sick.

Commentary: This question reinforces the key concept of hand hygiene in food safety. Emphasize the role of germs in causing illness.

Question 3: Maria ate a sandwich that had been left out of the refrigerator all day. Later that evening, she started feeling sick with a stomach ache. What could be the reason for her sickness?

Solution: The reason for her sickness could be that the sandwich had spoiled because it was left out of the refrigerator for too long. Bacteria may have grown on the food, making it unsafe to eat and causing food poisoning.