"Rational Diet and Food Safety" PPT teaching courseware

"Rational Diet and Food Safety" PPT teaching courseware

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"Rational Diet and Food Safety" PPT teaching courseware

Part One: Learning Objectives

1. Explain the concept and meaning of a reasonable diet.

2. Try to design a more nutritious recipe.

Important and difficult points

1. Focus: The significance of a reasonable diet.

2. Difficulty: Design a nutritionally reasonable recipe.

Reasonable diet and food safety PPT, part 2: review the past and learn the new

1. Among the substances that are both components of cells and energy sources of the body, the substance composed of amino acids is ______; the substance that is abundant in cereals and root foods is ______; it is composed of glycerol and fatty acids, most of which are stored as backup energy substances What's under the skin is ______.

2. Nutrients accounting for 60% to 70% of human body weight are _____________; there are many types, and the required amount is very small. Once lacking, it will affect normal growth and development, and even cause illness. It is _________; it has no nutritional value in itself. But it plays an important role in maintaining human health. What is called the "seventh nutrient" is ________.

3. Malnutrition and nutritional _______ both belong to nutritional disorders. The main causes of nutritional disorders are bad eating habits and unreasonable _______.

4. Adolescents are in a period of vigorous growth and development and need _______ various nutrients. Such as supplementing more protein and calcium.

Reasonable diet and food safety PPT, part 3: independent preview

1. Nutritional evaluation (Textbook P16-18)

1. Read page P18 of the textbook and investigate your own eating structure and habits.

Both _______ and _______ belong to nutritional disorders. The main causes of nutritional disorders are _______________ and unreasonable dietary structure.

2. A balanced diet is good for health (Textbook P18-21)

In order to maintain good health, you must ensure that you eat three meals a day on time; of the total daily energy intake, morning, noon, and evening energy should account for _____, _____, and _____ respectively.

Teenagers' bodies grow rapidly and they should eat more foods rich in _____ and _____.

3. Basic requirements for a balanced diet: a variety of foods, mainly _________. Eat more _____, fruits and potatoes. Eat milk, _____ or their products regularly, eat an appropriate amount of fish, poultry, eggs, lean meat, and eat less fatty meat and meat oil. Meals should be _____. Drinking should be _____. Food intake and _____ should be balanced, and appropriate _____ should be maintained; food should be clean, hygienic, and _____.

Reasonable Diet and Food Safety PPT, Part 4: Cooperative Learning

Exploration 1. “Balanced Diet Pagoda”

According to reports, the malnutrition rate among middle school students in my country reaches 24%. For this reason, nutritionists advocate that primary and middle school students should eat a balanced diet of five types of food every day to avoid malnutrition or overnutrition and achieve a reasonable diet.

BMI index can directly reflect the status of systemic overweight and obesity. It is one of the important indicators for adults to measure obesity and standard weight. Body mass index (BMI) = weight (kg) ÷ height (m) squared. When the BMI index is 18.5 to 24.9, it is normal. BMI < 18.5 is emaciation; BMI ≥ 25.0 is overweight.

Answer the following questions:

1. The positions and areas of food on each floor in the "Balanced Diet Pagoda" are different. What does it mainly reflect?

The locations and areas of each floor of the pagoda are different, which to a certain extent reflects the status and proportion of various types of food in the diet.

2. Calculate your own BMI, evaluate your nutritional status, and design a reasonable breakfast or lunch recipe for yourself based on the "Balanced Diet Pagoda"

The answer is reasonable

3. As the saying goes: Eat well in the morning, eat full at noon, and eat less at night. Eating is not just to fill your stomach or satisfy your cravings, it is mainly to ensure the normal development and health of your body. Among the total daily energy intake, the energy ratio of breakfast, lunch and dinner should be ( )

A. 3:3:4 B. 3:4:3

C. 4:3:3 D. 4:3:4

Study 2. Food safety

When some people buy vegetables, they only buy those with "bug eyes", thinking that they are green food without pesticide pollution. Do you agree with this statement? Please give your reasons. Are green foods green foods? Share what you know about green food.

I disagree. Just because there are "bug eyes" on vegetables and fruits does not prove that the vegetables have not been sprayed with pesticides. Vegetables with "worm eyes" may be caused by pesticides being used after the insects have appeared on the vegetables, or the insects may not be killed by pesticides.

Green food refers to safe, high-quality edible agricultural products and related products that are produced in an excellent ecological environment, produced in accordance with green food standards, implement full quality control, and obtain the right to use the green food mark.

Reasonable diet and food safety PPT, Part 5: Apply what you learn

A. Preview test

1. A reasonable diet refers to ( )

A. Eat more fruits and vegetables

B. Eat more staple food

C. Eat more meat, eggs and milk

D. Appropriate proportions of various nutrients and reasonable combinations

2. In the picture below, what can scientifically represent the reasonable dietary proportion of healthy adults is ( )

3. Below are several lunch recipes designed by Zhang Huahua’s mother. Which one do you think is the most reasonable? ( )

A.Prawn, beef, eggs

B. Celery, ribs, rice

C. Rice, cabbage, celery

D. Fatty meat, winter melon, bread

4. Teenagers who are in the growth and development period should eat more ( )

A. Foods rich in calcium, phosphorus, protein and vitamins

B. Foods rich in protein

C. Foods rich in calcium and phosphorus

D. Foods rich in sugar

Keywords: Beijing Normal University Edition Biology PPT courseware for seventh grade volume 2 free download, reasonable diet and food safety PPT download, .PPT format;

For more information about the PPT courseware "Human Nutrition, Reasonable Diet and Food Safety", please click the Human Body Nutrition ppt, Reasonable Diet and Food Safety ppt tag.

"Rational Diet and Food Safety" PPT courseware download:

"Rational Diet and Food Safety" PPT courseware download Part One: New Lesson Introduction The types and contents of nutrients in different foods are different. People's dietary structures and eating habits are different, so the nutrients they obtain are different. In order to meet the needs of growth and development...

"Rational Diet and Food Safety" PPT download:

"Rational Diet and Food Safety" PPT Download Part One: Course Knowledge Points Knowledge Point 1 Nutritional evaluation prompts whether the diet is reasonable. To achieve a reasonable diet, you must first understand your own nutritional status. The evaluation method is generally to measure your height (m) and weight (kg..

"Rational Diet and Food Safety" PPT courseware:

"Rational Diet and Food Safety" PPT courseware Part One: Learning Activity 1 1 What is a nutritious and reasonable diet? A diet that meets the body's nutritional and energy needs. According to the results of the National Nutrition Census, more than 95% of primary and secondary school students do not eat breakfast well and...

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