Teacher Qian Nan and I discussed that we should hold a fruit welcome party to make these three new shells quickly become "old" shells and live happily in the small shell classroom. But what kind of fruit to eat? Small shells like this! But teacher Qian Nan and I don't know the preferences of small shells. What shall we do? The statistical thought in mathematics can solve this problem well. Well, the first lesson of the new semester in the small shell class is to learn statistical thoughts.

First of all, let's see what problems we have encountered:

How to make an appropriate investigation plan?

Cheng: I want to make a form for everyone to fill in their favorite fruits and finally count the number of fruits.

Kay: I retort, what if someone writes that fruits are not easy to sell this season?

Han: Then let's determine the scope of a fruit first. Please choose from this range.

Lin: The fruit of this season is of course grapes!

Dong: There are watermelons and peaches.

Ran: I like to eat winter dates.

..... Finally, we will determine the range of fruits we choose as follows-

With the content of the survey, all the students of Little Shell are our subjects, so how should we conduct the survey?

Cheng: You can use the method I just said this time. Let's write the names of these fruits in the table, then let the whole class fill in their own ideas, and finally count the number of people who like each fruit.

Bo: I retort that if each person has a form, we need to make 15 forms; If everyone fills out a form, it will be a mess.

Xi: Please show your hands and vote! This is the easiest way.

The little shells finally decided to know the class's love for fruit by raising their hands. Our findings are as follows-

Someone immediately worried about buying watermelons, and watermelons like people best.

Bo: It will be more intuitive to put these data in a horizontal row.

After we made a preliminary arrangement of the data, the children began to read the information:

Of course, from this survey, I found that people like watermelon the most and bananas the least.

Kay: I found that there are as many people who like peaches as there are people who like winter dates.

Qi: I found that there are as many people who like apples as there are people who like grapes!

……

Let's give Mr. Mao an idea! What fruit should I prepare for our welcome fruit party?

Cheng: You should buy watermelons, peaches, winter dates and oranges.

All the little shells agreed, but they said slowly, my favorite dragon fruit!

After a short silence in the classroom, Hui said, that won't do! What about those students who like other fruits? They won't eat their favorite fruits at fruit parties!

Yes! Is it reasonable for the minority to obey the majority? The children have a new idea.

Zhuo: You'd better buy some of each kind of fruit. We can decide the quantity of fruit to buy according to the number of people who like it.

Xi: Haha, that's absolutely impossible. There are 14 people who like watermelon. Should I buy 14 watermelon?

Dong: That's absolutely impossible. We will eat fruit after supper in the afternoon. How to eat?

Of course, last year we learned how to measure quality. We can decide how many Jin to buy according to the number of people who like this fruit.

Bao: I know. One kilogram is 500 grams. We can also cut fruit to eat, which is more fun.

The other little shells agreed again and again. So everyone began a lively discussion, whether it is more appropriate to buy a few kilograms of each fruit, and finally we made such a purchase decision.

Look, the fruit welcome party is about to start!

Raise your hand if you like watermelon! -15 people. Hmm? The statistics are 14!

Raise your hand if you like peaches! -15 people. Hmm? The statistics are 12!

Raise your hand if you like grapes! -15 people. Ah! What's going on here? There are only five people in the statistics!

……

Haha, teacher, we are all big liars. Who can bear to see such delicious fruit?

Well, it seems that when we made the final decision, we seriously underestimated the love of small shell class for food!

Teacher Mao didn't think of this, but teacher Wang in the kitchen did. Teacher Mao only asked for a small bowl of grapes, and Teacher Wang sent a large bowl directly. Plus cherry tomatoes that we didn't expect.

Teacher Qian Nan and teacher Rui Jie also joined our welcome party, cutting watermelons and dividing peaches and oranges ... Haha, it's too noisy!

Most importantly, every child has completely opened himself up. There is no boundary between the new shell and the old shell, and there are only happy smiles on the children's faces.

Children also generously share their little secrets.