1. How to design a small class activity lesson plan "Knowing Tomatoes"
Activity goals: 1. Understand the name, appearance characteristics, and internal structure of tomatoes, and know that tomatoes are nutritious.
2. Be able to express your findings boldly in language. Activity preparation: Several tomatoes, ppt courseware, important and difficult points: Understand the tomato activity process from the appearance characteristics and internal structure: 1. Introduction activity: Children, today there is a special friend in our class, let us guess who it is Bar? You have to listen carefully! (Riddle: The face is round like an apple, sweet and sour and nutritious. It can be eaten as a dish or as a fruit.)
Children, have you guessed it? (Tomatoes) Look, the baby tomatoes are here. (Courseware demonstration, dubbing: Hello everyone, I am a tomato) 2. Understand the name of tomatoes: Courseware demonstration, dubbing: "Did you know? I also have a nice name? What is it called?" (Tomato) 3. Understanding Tomato appearance characteristics: 1. (PPT has ripe and immature tomato babies) Dubbing: "Look, what color clothes am I wearing?" (Children's answer) Children, do you know why some tomato babies wear green? Clothes, do some tomato babies wear red clothes? (Name the colors of ripe and less-ripe tomatoes) It turns out that the immature baby tomatoes wear green clothes, while the ripe tomato babies wear red clothes.
2. Children, listen carefully, what else does the tomato baby want to say to us? Dubbing: "What does my body look like?" (Round) 3. Dubbing: "I see that the children's skin is very good, so what do you think my skin is like?" Baby Tomato just said We asked a question. Now the teacher invites the children to touch the baby tomatoes and see what their skin looks like. (The teacher in charge of the class hands out tomatoes) (Slippery, smooth) (Praise the child for good words in time) 4. Summary: The children observed carefully and found that the baby tomatoes are round and chubby; When the tomato baby is ripe, it wears green clothes; when it matures, it changes into red clothes. Its skin is as smooth as yours! Do you think baby tomatoes are beautiful? 4. Understand the internal structure of tomatoes: 1. Such a beautiful baby tomato, guess what is in its belly? (Let the children talk first) 2. (Cut the tomatoes and play the ppt) The children have said a lot, now let us take a look! (Emphasis on the danger of knives and the teacher must cut them.) There are cut baby tomatoes in front of the children. Please observe them carefully and tell the children around you what you saw. 3. Summary: The children looked very carefully and found that there is a thin layer of peel on the outside of the tomatoes, red flesh under the skin, and several small houses inside. Each small house has a lot of water and round inside. Round seeds.
5. Understand the nutrition of tomatoes: 1. Are you willing to be friends with such a cute baby tomato? (The PPT shows dishes made with tomatoes, such as tomato scrambled eggs, etc.) Hey, are the tomato babies playing hide and seek with us? Where is it hiding? Children, come and look for it. (Children are so amazing, they can immediately find where the baby tomatoes are.)
Have you tried all of these dishes made with baby tomatoes? 2. Why do people like to eat tomatoes so much? (Nutritious and delicious, eating more tomatoes can supplement vitamins, so that children can grow well) 6. Ending activity: However, the teacher found that some children don’t like to eat tomatoes. Look, the baby tomatoes look great. So beautiful and nutritious, everyone loves it.
So children who don’t like tomatoes should get rid of their picky eating habits, do you understand? Now that we have become friends with the tomato baby, it wants to invite the children to dance with it. Are you willing? Let’s invite a tomato baby together! (A teacher put on a big headdress and played the role of a tomato, and the teachers and children danced to the end) (PPT played FLASH) Teacher: Today we met another good friend, that is our tomato baby. Children, let us introduce this new friend Introduce me to the guest teacher.
2. Kindergarten middle class lesson plan comparison of tomatoes and persimmons
Reflection on the design activity of the science activity "Understanding Tomatoes" for the middle class class
1. Activity name: middle class Science activity "Understanding Tomatoes"
2. Instructor: Li Jiaoou
3. Activity goals:
1. Use multiple senses to perceive the characteristics of tomatoes , boldly describe the findings in the observation.
2. Know that eating tomatoes is good for your body.
3. Experience and enjoy the fun brought by scientific observation activities.
4. Important and difficult points of the activity:
Key points: 1. Use multiple senses to perceive the characteristics of tomatoes and boldly describe the findings during observation.
2. Know that eating tomatoes is good for your body.
Difficulties: 1. Know that eating tomatoes is good for your body.
2. Experience and enjoy the fun brought by scientific observation activities.
Five: Activity preparation:
1. Material preparation: tomatoes
2. Knowledge preparation: Guide children to use multiple senses to perceive the things around them in daily life Object characteristics and cultivate children’s observation ability.
Six: Activity process:
(1) Introduction with riddles to stimulate children's interest in the activity.
Teacher: Today, the teacher brought a new friend, and I hid it in a riddle.
Riddle: The round face is like an apple. It is sour, sweet and nutritious. It can be eaten as a dish or as a fruit.
Teacher: Children, guess who the teacher’s friend is?
Younger: Raise your hand freely to answer.
Teacher: Tomatoes also have a nice name, called "tomato".
(2) First observation, use your senses to perceive the external characteristics of tomatoes.
1. Teacher: Touch it with your hands. What do you feel? Take a look with your little eyes, what color is it? What shape? Smell it with your nose. What does it smell like?
2. Teacher: Ask the children to observe carefully and quietly, and ask the children to speak boldly about their findings during the observation.
3. Teacher and child *** summary, the external characteristics of tomatoes.
Teacher: What color are the tomatoes you can see with your eyes? What shape? What do tomatoes look like when you touch them with your hands, and what do they feel like? What do tomatoes smell like with your nose?
4. Teacher’s summary: Tomatoes are round and have a red body. It feels smooth and cool to the touch. It smells a little like tomatoes.
(3) Second observation, perceiving the internal characteristics of tomatoes.
3. What nutrients are contained in tomatoes?
Introduction: Tomatoes are also known as tomatoes and persimmons.
It is said that tomatoes first grew in South America. Because of their delicate colors, people were very wary of them and regarded them as "the fruit of the fox," also known as wolf peach. They were only for viewing and did not dare to taste. Now it is a delicacy on many people's tables. Tomatoes are rich in carotene, vitamins B and C, especially vitamin P, ranking highest among vegetables.
Efficacy: Lycopene has a protective effect on cardiovascular systems and can reduce the risk of heart disease. Lycopene has a unique antioxidant ability, which can scavenge free radicals, protect cells, protect DNA and genes from damage, and prevent the progression of cancer.
Domestic and foreign experts believe that in addition to preventing prostate cancer, tomatoes can also effectively reduce the risk of pancreatic cancer, rectal cancer, laryngeal cancer, lung cancer, breast cancer and other diseases. Tomatoes are sweet, sour and slightly cold. They have the effects of producing fluids and quenching thirst, strengthening the stomach and digestion, cooling blood and calming the liver, clearing heat and detoxifying, and lowering blood pressure. They have a good auxiliary therapeutic effect on patients with hypertension and kidney disease.
Eating more tomatoes has anti-aging effects and keeps the skin fair. Niacin can maintain the normal secretion of gastric juice, promote the formation of red blood cells, help maintain the elasticity of blood vessel walls and protect the skin, so eating tomatoes is also helpful in preventing and treating arteriosclerosis, hypertension and coronary heart disease.
Tomatoes are juicy and can be a diuretic, so patients with nephritis should also eat them. Tomatoes contain a type of dietary fiber called pectin, which can prevent constipation.
Suitable for the crowd: It can be consumed by most people. Applicable dosage: Eat 2 to 3 pieces a day to meet daily needs.
Warm reminder: Do not cook for a long time when cooking. Adding a little vinegar when cooking can destroy the harmful substance tomatine.
Green, unripe tomatoes should not be eaten. Patients with acute enteritis, bacillary dysentery and active ulcers should not consume it.
4. What are the functions of tomatoes?
The fruit is rich in nutrients and contains a variety of vitamins.
As vegetables or fruits. It can also be made into canned food.
Nature and flavor: sweet, sour, cool in nature. Ingredients This product is rich in vitamins, minerals, carbohydrates, organic acids and a small amount of protein.
It can promote digestion, diuresis and inhibit various bacteria. Vitamin D in tomatoes can protect blood vessels and treat high blood pressure.
Tomatoes contain glutathione, which can delay cell aging and increase the body’s anti-cancer ability. Carotene in tomatoes can protect skin elasticity, promote bone calcification, and prevent and treat rickets, night blindness and xerophthalmia in children.
Function: clear away heat and promote fluid production, nourish yin and cool blood, strengthen stomach and digestion. [Hypertension, chronic hepatitis] 250 grams of fresh tomatoes, washed and cut into pieces; 100 grams of beef cut into thin slices, seasoned with a little oil, salt and sugar and cooked together for serving.
Once a day. [Weakness, blood deficiency, malnutrition, dizziness] 100 grams of tomatoes, 100 grams of pork liver, 100 grams of japonica rice, and 3 slices of ginger.
First wash and slice the pig liver, mix it with salt, soy sauce, cornstarch and rice wine; wash the tomatoes and cut them into pieces; wash the ginger, peel and shred it; wash the japonica rice and put it into the pot In the pot, add appropriate amount of water, simmer for 20 minutes, add tomatoes and ginger, cook for 10 minutes, then add pork liver, boil for a few minutes until the liver is just cooked, season and serve. [Fever hurts body fluids, dry throat, and makes you thirsty during summer heat] 250 grams of tomatoes, 200 grams of grass carp meat, an appropriate amount of tofu, 1 pinch of Nostoc, and 1 green onion.
First wash the grass carp meat, dry it and chop it into pieces. Add the seasoning and seasoning, stir in the chopped green onions and make fish balls. Put the tofu into the pot, add an appropriate amount of water, bring to a boil over high heat, add tomatoes, boil again, add fish balls and cook, season and serve.
[Gastric ulcer disease] Mix 150 ml of tomato juice and 150 ml of potato juice, once in the morning and once in the evening. [Bleeding gums] Eat tomatoes instead of fruits. Eat 4 pieces (about 250 grams) every day. Take it for more than 2 weeks to see the effect.
[High temperature heatstroke] Wash and slice 200 grams of tomatoes, decoct them into soup instead of tea, either hot or cold. [Hypertension, fundus bleeding] Eat 2 raw fresh tomatoes on an empty stomach every morning, for half a month as a course of treatment.
Nutritionists believe that eating 100-200 grams of fresh tomatoes raw every day can ensure the vitamins and minerals needed by the human body. However, you should pay attention to the following points when eating raw tomatoes: 1. It is not suitable to eat immature tomatoes. tomato. Immature raw tomatoes contain solanine, which can cause bitterness in the mouth and upset stomach after eating. Eating too much can lead to poisoning.
2. It is not advisable to eat a large amount of tomatoes on an empty stomach, because tomatoes contain a lot of colloids, pectin, persimmon phenols and other components, which can easily combine with gastric acid to form massive stones, causing stomach distension and pain. 3. Patients suffering from acute gastroenteritis and acute bacillary dysentery should not eat tomatoes to avoid aggravation of the condition.
4. Do not eat rotten tomatoes to prevent poisoning. People with weak spleen and stomach should not take more.
5. What are tomatoes?
Tomatoes are also called tomatoes, plums, and persimmons.
It is native to South America. It is said that the British Duke brought it to Europe during his travels in the 16th century. It may also have been introduced to China from the west, so it is called tomato. Tomatoes can be eaten raw, stir-fried, juiced, and made into sauces. They are known as the "fruit among vegetables" and are used all over the world.
Based on the analysis of traditional Chinese medicine diet theory, tomatoes are slightly cold in nature, sweet and sour in taste; they enter the spleen, stomach and liver meridians. It can nourish yin and promote fluid production, strengthen the spleen and stomach, calm the liver and clear away heat. It is suitable for symptoms such as loss of appetite, stomach heat and thirst caused by febrile disease and yin damage.
Modern medical testing shows that tomatoes are rich in vitamin C. Each hundred grams of tomatoes contains 11 mg of vitamin C, which is 2.5 times that of apples. The vitamin PP content is also among the best among fruits and vegetables.
In addition, it also contains 0.31 mg of carotene. In addition to calcium, phosphorus, and iron, it also contains more malic acid and citric acid.
There are many opinions on the anti-cancer effect of tomatoes. Hong Kong's "Express News" once reported that lycopene can protect people from car exhaust and carcinogens in cigarettes.
Lycopene is also an antioxidant that can inhibit certain carcinogenic oxygen free radicals and prevent the occurrence of cancer. Tomatoes also contain glutathione, which can delay cell aging and reduce the incidence of malignant tumors.
Foreign studies have also found that tomato extract can reduce the specific antigen PSA in prostate cancer patients, suggesting that it is beneficial for prostate cancer patients to eat more tomatoes. The book "Lu Chuan Mu Cao" records that tomatoes have the effect of strengthening the stomach, digesting food, and treating loss of appetite. This may be related to the malic acid and citric acid contained in them. These two ingredients can suppress appetite, promote gastric acid secretion, help digestion, and enhance The absorptive function of the gastrointestinal tract.
People with poor digestive function or those who eat a lot of fishy and greasy food are beneficial to eating tomatoes after meals. Obese people and people with hypercholesterolemia develop the habit of eating tomatoes regularly, which is beneficial to weight loss and lipid reduction. This is due to the fruit acid contained in tomatoes.
Tomatoes also contain tomatine, which has been shown in animal experiments to significantly reduce the increase in vascular permeability caused by histamine and has anti-inflammatory effects. In addition, tomatoes are also rich in riboflavin, ascorbic acid, vitamin A, vitamin K, etc., which are good for preventing and treating gum bleeding and oral ulcers.
Examples of tomatoes used in dietary therapy are as follows: Nourishing Yin and Promoting Liquid Recipe: used for dry mouth and throat, loss of appetite, irritability, thirst, and red tongue with less coating caused by insufficient stomach yin or head and neck radiotherapy. Wash 200 grams of tomatoes, blanch them in boiling water, peel them, mash them and add an appropriate amount of rock sugar, put them in the refrigerator and let them cool for later use.
It can be taken frequently after meals at any time. Qingwei Jianpi Recipe: used for epigastric distension, hiccups, anorexia, bad breath, and polydipsia caused by stomach heat, gluttony for meat and fish, and excessive drinking.
100 grams of bitter melon, blanch in boiling water and slice into pieces, boil with a little vegetable oil, stir-fry the bitter melon, wash and cut tomatoes into crescent slices and stir-fry together, add salt and seasoning, a little MSG to dissolve, and mince garlic at the same time Add in, stir-fry and remove from the pan. Cooling blood and stopping bleeding prescription: used for oral ulcers, gum swelling and pain, and mucosal bleeding caused by blood heat, poisonous fire, or radiation therapy in the head and neck.
Slice 100 grams of fresh lotus root, 50 grams of black fungus in water, boil water in a casserole for about half an hour, add 200 grams of tomatoes into slices, add salt, MSG and other seasonings and cook for 10 minutes, one egg Beat egg flowers into soup. Immature green tomatoes contain solanine, which can be toxic if eaten in large quantities, so those who are immature should not eat them.
Tomatoes tend to be cold and should not be eaten by those with spleen and stomach deficiency. It is best to eat raw tomatoes after meals to avoid gastrointestinal damage on an empty stomach, and to avoid combining with gastric acid to form indigestible substances that cause epigastric discomfort.
Some people also suggest that tomatoes should not be eaten with cucumbers to prevent the components contained in cucumbers from destroying the vitamins in tomatoes. .
6. How to design a small class activity lesson plan "Understanding Tomatoes"
Activity goals: 1. Understand the name, appearance characteristics, and internal structure of tomatoes, and know that tomatoes are nutritious.
2. Be able to express your findings boldly in language. Activity preparation: several tomatoes, ppt courseware, important and difficult points: understand tomatoes from the appearance characteristics and internal structure. Activity process: 1. Introduction activity: Children, a special friend came to our class today, let us guess who it is. Bar? You have to listen carefully! (Riddle: The face is round like an apple, sweet and sour and nutritious. It can be eaten as a dish or as a fruit.)
Children, have you guessed it? (Tomatoes) Look, the baby tomatoes are here. (Courseware demonstration, dubbing: Hello everyone, I am a tomato) 2. Understand the name of tomatoes: Courseware demonstration, dubbing: "Did you know? I also have a nice name? What is it called?" (Tomato) 3. Understanding Tomato appearance characteristics: 1. (PPT has ripe and immature tomato babies) Dubbing: "Look, what color clothes am I wearing?" (Children's answer) Children, do you know why some tomato babies wear green? Clothes, do some tomato babies wear red clothes? (Name the colors of ripe and less-ripe tomatoes) It turns out that the immature baby tomatoes wear green clothes, while the ripe tomato babies wear red clothes.
2. Children, listen carefully, what else does the tomato baby want to say to us? Dubbing: "What does my body look like?" (Round) 3. Dubbing: "I see that the children's skin is very good, so what do you think my skin is like?" Baby Tomato just said We asked a question. Now the teacher invites the children to touch the baby tomatoes and see what their skin looks like. (The teacher in charge of the class distributes tomatoes) (Slippery, smooth) (Praise the child for good words in time) 4. Summary: The children observed carefully and found that the baby tomatoes are round and chubby; When the tomato baby is ripe, it wears green clothes; when it matures, it changes into red clothes. Its skin is as smooth as yours! Do you think baby tomatoes are beautiful? 4. Understand the internal structure of tomatoes: 1. Such a beautiful baby tomato, guess what is in its belly? (Let the children talk first) 2. (Cut the tomatoes and play ppt) The children have said a lot, now let us take a look! (Emphasis on the danger of knives and the teacher must cut them.) There are cut baby tomatoes in front of the children. Please observe them carefully and tell the children around you what you saw. 3. Summary: The children looked very carefully and found that there is a thin layer of peel on the outside of the tomatoes, red flesh under the skin, and several small houses inside. Each small house has a lot of water and round inside. Round seeds.
5. Understand the nutrition of tomatoes: 1. Such a cute baby tomato, are you willing to be friends with it? (The PPT shows dishes made with tomatoes, such as tomato scrambled eggs, etc.) Hey, are the tomato babies playing hide and seek with us? Where is it hiding? Children, come and look for it. (Children are so amazing, they can immediately find where the baby tomatoes are.)
Have you tried all of these dishes made with baby tomatoes? 2. Why do people like to eat tomatoes so much? (Nutritious and delicious, eating more tomatoes can supplement vitamins, so that children can grow well) 6. Ending activity: However, the teacher found that some children don’t like to eat tomatoes. Look, the baby tomatoes look great. So beautiful and nutritious, everyone loves it.
So children who don’t like tomatoes should get rid of their picky eating habits, do you understand? Now that we have become friends with the tomato baby, it wants to invite the children to dance with it. Are you willing? Let’s invite a tomato baby together! (A teacher put on a big headdress and played the role of a tomato, and the teachers and children danced to the end) (PPT played FLASH) Teacher: Today we met another good friend, that is our tomato baby, children, let us introduce this new friend Introduce me to the guest teacher.