"How Much Waste Can Be Avoided" Become a Smart Consumer PPT (Lesson 1)

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"How Much Waste Can Be Avoided" Become a Smart Consumer PPT (Lesson 1)

Part One: Conversation Introduction

Storytelling: The Cry of Food.

In the dead of night, bursts of crying came from the swill bucket in the corner of the school cafeteria.

Mi Li's brothers hugged each other and cried: "The children nowadays are really cruel and throw us away in big groups. If they don't eat enough staple food, they will easily lose energy in class, play and exercise." ”

A few white steamed buns were also wiping tears at the side: "We are too, you see, we only took a few bites and then threw them away."

The cabbage, beans, and eggplants soaked in the vegetable soup all said: "That's right, that's outrageous!" "Our vegetables are so nutritious." "The chefs washed us carefully and cooked us carefully. , but the children don’t appreciate the fruits of their labor at all.”

The pieces of braised pork piled high on the top of the swill bucket sighed: "Now that the children have eaten well, they have become more picky eaters. Even though we are so delicious, we cannot escape the fate of being abandoned."

Thinking: In addition to the waste in our school, where else have you seen waste?

When we enjoy food on the table, we may also produce waste. Today, we’ll explore the topic of waste. Blackboard writing topic: How much waste can be avoided - waste on the dining table

How much waste could have been avoided PPT, part 2: exploration of new knowledge

(1) Take a look, read, and think about it.

1. Watch p44 waste. Have you ever seen or experienced this kind of waste?

2. Thinking: Have you ever seen such waste in our school canteen?

3.Have you ever experienced such waste? Talk to your deskmate.

4. Let’s talk about it: Waste has many manifestations. Throwing away food you don’t like is a waste; ...is a waste; ...is a waste; ...is a waste.

Summary: Throwing away food you don’t like is a waste; throwing away old toys is a waste; not turning off the faucet is a waste; overeating is also a waste... This kind of waste is easy to be ignored, maybe every time it is wasted The amount may not seem like much, but over time it adds up to a huge amount. So how big is our little waste? Let’s do the math together.

(2) Do the math and think about it.

1. Do the math:

①Weigh it with a scale and measure it in a small bowl to see how much rice is in 50 grams.

② If each student wastes 50 grams of rice a day, how much rice will the whole class waste in a day? How much will be wasted in a year? If there are 1,000 students in the school, how much rice will be wasted in a year?

③A student eats about 9 kilograms of rice a month. If this wasted food could be accumulated, how many students could be fed for a month?

50×50=2500 (grams) 2500×365=912500 (grams)

912500×1000=912500000 (grams) 912500000 grams=912500 kilograms

912500÷9≈101389 (pieces)

Summary: Looking at these shocking figures, do you think this is still a small waste? Rejecting waste starts with me.

(3) Read it and talk about it.

1. Read: p46 "Reading Corner".

The hard work behind a bottle of water

When I got home from school, I put down my schoolbag and still had half a bottle of mineral water left in my hand. Just when I was about to throw it into the trash can, my mother stopped me: "Haohao, don't waste it." I said, "Mom, a bottle of water only costs more than one yuan. I wasted fifty cents at most."

Mom said: "Think about it, did you only waste fifty cents?"

I thought about it and said, "It's a waste of water resources."

My mother touched my head and said: "Yes. You not only wasted water resources, but also wasted a lot of manpower and material resources. A bottle of water has to go through many processes from drawing to processing, canning and sealing. Mineral water leaves the factory Finally, it needs to be packed in boxes, transported over long distances, kept in a warehouse, transported to the supermarket to unload, and tallied to put it on the shelves. Many people have worked hard.

The same is true for the production of mineral water bottles. Not to mention the manpower behind it to make machines, vehicles, build houses, build bridges and pave roads. After careful calculation, a bottle of water can embody the hard work of hundreds or thousands of people. "

After listening to my mother's words, I felt that the half bottle of water in my hand was heavy and I could no longer throw it away casually.

Let’s talk about it: Some people say that wasting food is not just a waste of food. Do you know what else is wasted behind this?

Yes, when we throw away food, we waste more than just food. Grain production from sowing - transplanting - fertilizing - weeding - threshing - drying - threshing - cooking requires a lot of manpower and material resources, not to mention the machinery and equipment required in between. Therefore, when we throw away food, we waste more than just food. Saving food is not only a habit, but also a virtue. Everyone starts from themselves, starts from small things, and makes their own efforts to form a good social trend of diligence and thrift.

5. Related links.

(1) Students read freely and silently.

(2) Students exchange their reading gains.

From this point of view, saving food and refusing to waste can not only reduce the pressure of agriculture on the environment, but also save the resources required for food production, which is of great significance.

Think about it: Did you have a CD today?

Analyzing scenarios: p48 case. What do you think of these behaviors?

(1) At home, cook meals on demand, not picky eaters, and no leftovers.

(2) Don’t buy too much food with a short shelf life at one time, otherwise it will expire.

(3) I also know that waste is not good, but I really don’t like eating today’s food.

(4) We were having a treat at a restaurant, and I asked my mother not to order too much, so as not to finish the meal. But my mother said that all the food on the table was finished, which was a bit embarrassing.

How much waste could have been avoided PPT, Part 3: Classroom Exercises

1. Fill in the blanks.

1. When we enjoy the food on the table, we may produce ( ).

2. ( ) is even more disrespectful to the fruits of labor.

3. Saving food is ( ), and more importantly ( ). We all start from ( ), start from ( ), and make our own efforts to form a good social trend of ( ).

2. Judgment.

1. The waste phenomenon in schools is quite serious. ( )

2. "Gathering sand into a tower", small wastes add up to a big sum. ( )

3. A bottle of mineral water only costs 1.5 yuan, so it’s no shame to throw it away. ( )

4. Wasteful behavior is disrespectful to workers’ labor behavior. ( )

5. Saving food is not only a habit, but also a virtue. ( )

6. As primary school students, we cannot make our own efforts to form a good trend of diligence and thrift. ( )

7. At home, cook meals on demand, not picky eaters, and no leftovers. ( )

8. Don’t buy too much food with a short shelf life at one time, otherwise it will expire. ( )

9. I also know that waste is not good, but I really don’t like eating today’s food. ( )

10. We were having a treat at a restaurant, and I asked my mother not to order too much, so as not to finish the meal. But my mother said that all the food on the table was finished, which was a bit embarrassing. ( )

3. Essay question: What are your views on "Operation CD-ROM"?

Answer: The purpose of "Operation CD-ROM" is not to order too much in the restaurant, not to eat too much in the canteen, and not to cook too much in the kitchen. This allows people to develop the habit of cherishing food in life, practicing economy and opposing waste.

Keywords: Free download of PPT courseware for the second volume of the fourth grade of the People's Education Press on Morality and Rule of Law, how much waste could have been avoided PPT download, be a smart consumer PPT download, .PPT format;

For more information about the PPT courseware "How much waste can be avoided by being a smart consumer" PPT courseware, please click the How much waste can be avoided by being a smart consumer PPT tag.

"How Much Waste Can Be Avoided" Becoming a Smart Consumer PPT (Lesson 2):

"How Much Waste Can Be Avoided" Becoming a Smart Consumer PPT (Lesson 2) Part One: Conversation Introduction One day after school, Xiaohua and his team left the school together after cleaning. The next day, when Xiaohua came to school, a classmate told him: Yesterday...

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Update Time: 2024-11-15

This template belongs to Morality and the Rule of Law The second volume of Morality and Rule of Law for the fourth grade compiled by the People's Education Publishing House industry PPT template

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