The theme of inquiry learning is teenagers' diet and health. What questions can I ask when doing a questionnaire survey? This is urgent.

Interview students

In order to know the real situation of students and get first-hand information about their diet, we decided to interview students in person. The so-called interview is very different from a pure interview. In the process of interview, we don't just interview, but get the information we need in friendly conversation. In this way, we were recognized by our classmates during the interview. Most importantly, this way has greatly improved our work efficiency. We work in the form of division of labor and cooperation. The second group: Fu,; The third group: Ruan, Huang Kaiping. According to the plan, we interviewed the students in Grade Two, Grade Three and Grade Four, and the last three groups did well. After integration and analysis, we finally summarized the information obtained from the interview as follows:

The following are the questions we interviewed students and their answers:

1. What are your eating habits?

A: During the interview, most students have three meals a day, a few have four meals a day and a few have five meals.

Analysis: From this data, it can be seen that students' eating habits are still very good, because three meals a day are generally very beneficial to people's health, while eating more than four or five meals a day is unfavorable to people's health, so middle school students can eat moderately and fully, which is beneficial to their health.

2. Have you ever been sick because of an abnormal diet? Like what?

A: About 20% of the students said no, about 10% said yes, and 70% said they didn't know.

Analysis: It can be seen that an abnormal diet will bring us diseases. Moreover, 10% students have had this experience, and 70% students said they didn't know, which also shows that students don't understand the harm that diet will bring. In addition, 20% students said that they were not sick because of their abnormal diet. When we asked them, we found that their eating habits are very scientific, which also shows that good eating habits are related to people's health.

What benefits do you think good eating habits will bring to people, and what about bad eating habits? Do you have good eating habits?

A: The students' answers are mainly in several aspects: 2. It brings people health. It makes people stronger and stronger. Students think that the disadvantages of bad eating habits are: 1 getting sick, 2 being weak, etc. 6% students said yes, 78% students said no, and 6% students couldn't explain clearly.

Analysis: Students have various views on eating habits and people's health, which shows that students have a certain understanding of this aspect. But most students don't have good eating habits. This shows that students don't pay enough attention to their diet.

4. Are you picky about food? Why?

About 30% students are not picky eaters, and about 70% students are picky eaters. Students who are not picky about food are mainly for health and because of their good taste. Students who are picky eaters have bad taste.

Analysis: It shows that many middle school students still have the habit of picky eaters, which is also a very bad eating habit. Picky eaters and partial eclipse have become one of the important factors that endanger the health of middle school students.

5. You are not hungry. When is it usually and why?

All the students said yes. When you are hungry, you are mainly hungry after the fifth class in the morning and after 6 pm. There are several reasons: 1 I didn't eat much in the morning and didn't maintain enough. Poor taste, picky eaters is also a reason.

Analysis: Hunger is inevitable, because sometimes it is due to some special reasons, but frequent hunger will bring diseases and some adverse effects, so try to avoid hunger and keep yourself healthy.

6. Do you often eat fruits or vegetables?

A: 58% middle school students often eat fruit, and 2.5% middle school students never eat fruit. Only 35% of middle school students love vegetables.

Analysis: Eat more foods containing amino acids to ensure energy. Such as milk, fish, eggs, etc. Eat less sugary foods and high-fat foods.

According to these data, it can be generally reflected that students' understanding of the relationship between diet and health is still lacking, and students do not pay enough attention to their own diet and have no good eating habits. Therefore, we also suggest that middle school students know more about diet and health, which will help them understand healthy diet and cultivate good eating habits.

(5) Searching for information on the Internet

When we walked into the Internet cafe, we thought we could find the relevant information we wanted at will. Unexpectedly, difficulties came to us early. Some of the more important information that we discovered after a long time is gone (Fu Haoruan saved all the information they found in the mailbox. Strangely, when we opened the mailbox, we found that all our information was gone). Everyone felt sad and angry when they knew the news. Everyone thinks everything is unfair and unfair to us, and everything is so cruel. All this, all the impossibilities, may happen to us, which makes us disappointed and unacceptable. Finally, we comforted each other and ended it all. But we didn't give up. We continued our work. Yes, as long as there are negative results, we finally found the information we needed. The following is our summary information:

For most people, entering middle school has also entered a leap stage of growth and development-adolescence. And good nutrition affects physical and mental development, which is particularly important. So, what special needs do middle school students have for diet and nutrition? Teenagers' physical development is extremely rapid, coupled with intense study and a lot of activities, they need to consume more calories. The calories mainly come from rice, flour, fat and protein, so middle school students should eat three meals first. Eat more fish, lean meat, eggs, milk, bean products and other rich foods in protein. Middle school students' metabolism is vigorous, bones grow rapidly, and the number of muscle cells rises linearly. Special attention should be paid to the supply of calcium, phosphorus, magnesium and vitamins A and D. Iron is needed for the formation of a large number of tissues, and anemia will occur due to insufficient supply, so iron supplementation is more important. We should abandon the habit of being picky about food. Because a healthy body needs to take in all kinds of nutrients, picky eaters can easily cause nutritional imbalance and cause various diseases. It is especially important to have a good breakfast. The intense study and activities in the morning require that breakfast must contain enough calories. If conditions permit, meals can be added between classes to ensure students' energetic study.

Food is the direct source of vitamins. Generally speaking, different foods have different vitamins, including vitamin A-animal liver, milk, egg yolk, spinach, carrots, peppers, apricots, persimmons and so on. Vitamin d- cod liver oil, egg yolk, etc. Vitamin e- malt, vegetable oil, green leafy vegetables, egg yolk, dried beans and peanuts. Vitamin k- liver, green leafy vegetables, such as spinach; Intestinal bacteria can also produce vitamin K, and vitamin B1-germ and bran are the most abundant, and there are also many contents in various coarse grains, beans, animal livers and lean meat. Vitamin B2—— is the most abundant in animal liver, followed by eggs, dietary fish and crabs. Leafy vegetables and soybeans in vegetables. Vitamin PP-is the most abundant in animal liver, followed by kidney, heart, lean meat, fish, eggs, brown rice, peanuts, soybeans and green leafy vegetables. Fresh vegetables, oranges and fruits are rich in vitamin C. The content of fresh jujube, a special product in North China, is the highest, with an average of C300 mg of vitamin per 100 g, and some of them are as high as 1000mg. Folic acid-liver, yeast, green leafy vegetables and intestinal bacteria can also be synthesized. Scientists classify vegetables into four categories according to their nutrient contents: A, B, C and D. A vegetables are rich in carotene, riboflavin, vitamin C, calcium and fiber. , with high nutritional value, mainly including Chinese cabbage, spinach, mustard, amaranth, leek, sherry red and so on. Category B vegetables: Nutrition is second only to Category A, and there are generally three kinds. The first one contains riboflavin, including all fresh beans and bean sprouts; The second category contains more carotene and vitamin C, including carrots, celery, green onions, green garlic, tomatoes, peppers and sweet potatoes. The third category mainly contains vitamin C, including Chinese cabbage, cabbage and cauliflower. Class C vegetables: contain less vitamins, but have higher calories, including potatoes, yams, taro, pumpkins, etc. D vegetables: containing a small amount of vitamin C, with low nutritional value, such as white gourd, bamboo shoots, eggplant, water bamboo and so on.

A bad diet in middle school will do great harm to health, such as avoiding myopia (from China Medical News). When it comes to myopia, many people often blame it on bad eye habits, such as improper reading distance, dim light and persistence in using eyes. However, medical research in recent years shows that improper diet is also one of the important reasons for inducing myopia in adolescents. Dr. Belan, a researcher at new york University in the United States, analyzed a large number of juvenile myopia cases and pointed out that the lack of trace element chromium in the body has a certain relationship with the formation of myopia. Teenagers like sweets, and eating too much sugar may make the blood in the body sour. However, in order to maintain the acid-base balance, the human body has to mobilize a lot of calcium to neutralize the acid radical, resulting in insufficient blood calcium, weakening the elasticity of the eye wall, lengthening the eye axis and sowing the hidden danger of myopia. At the same time, the increase of blood sugar will also make the lens bulge to form myopia; The retina is vulnerable to damage. Excessive monosodium glutamate may lead to blindness (Beijing Youth Daily) People in China always like to put more monosodium glutamate in cooking. However, a recent study shows that eating too much monosodium glutamate may lead to blindness. Researchers at Hirosaki University in Japan have found that if rats eat a lot of sodium glutamate in their daily diet, their eyesight will decrease and their retinas will become thinner. Previous studies have found that injecting this substance directly into the eyes can cause nerve damage. But this study proves for the first time that even if the food you eat contains monosodium glutamate, it will do harm to your eyes. Adequate supply of vitamin A also helps to protect eyesight and prevent respiratory infections. Protein is also the basis of vision development: the eye is one of the important organs of the body, and the normal function and tissue renewal of the eye can not be separated from protein. If protein is in a state of deficiency for a long time, it will lead to decreased eye function, decreased vision, various eye diseases and even blindness. In addition, research shows that many students fail in culture class because they don't eat food for breakfast. Because half a catty of milk can only provide 120 calories, and a 50g egg can only provide 72 calories, while primary and secondary school students need 1 100- 1200 calories and 800-900 calories respectively in five classes in the morning, the lack of energy supply will lead to students' inattention in class and affect their listening. In addition, if you are too hungry, it will also cause students to have no appetite and malnutrition at lunch; Either eating lunch is easy to form obesity. Reasonable collocation of food and vegetables with meat and vegetables can not only make the nutrients needed by the human body complete and complement each other (that is, the complementary effect of nutrition), but also the diversification of food can promote appetite and enhance the absorption and utilization of nutrients by the body. The intake of dietary nutrients can be measured by referring to "recommended dietary allowance in daily diet" recommended by China Nutrition Society. The so-called reasonable nutrition should meet the physiological function and actual needs, such as choosing foods with high heat energy for breakfast and ensuring sufficient heat energy for morning activities. Some developed countries attach great importance to breakfast, not only milk and orange juice, but also fried eggs, jam, bread and meat. Lunch should not only supplement energy consumption in the morning, but also reserve energy for consumption in the afternoon, so lunch food should be rich in protein and fat. As for dinner, it is not advisable to eat too much protein and fat, so as not to cause indigestion and affect sleep. It is more appropriate to eat whole grains and light vegetables for dinner.