100,000 urgent!! The content of the 6th grade graduating class poster

Nowadays, it's very popular to make ** books, which is to make the ** and some words of your classmates and teachers into a book-like thing. I know a book called 69diy**, and my brother did it there when they graduated this year, and it feels very good. They have a system that you can do yourself with their assistance, which is more in line with your own wishes.

It's usually more than 100 copies, but it depends on your requirements, such as how many sheets you want, each book, that is, how many people are in your class.

The layout of the sixth-grade classroom should be in line with the layout of the junior high school classroom.

Don't be too flowery, simple, clear.

There are these parts.

One is to publish a good blackboard newspaper, or a wall newspaper.

There are also bulletin boards, class goals, class conventions, class notes, good people and good deeds, and a paradise of knowledge.

Wait a minute. According to the situation of the class, it is comprehensively formulated.

The distance between the table and the table should be farther, first: there are few people, and the teacher can take care of it; Second, to prevent the exchange of notes among classmates; Third: there is enough space to move.

Hang a money-seeking belt or something in the classroom, as long as it can be decorated.

Students' work can be displayed.

I don't understand, is there a difference between shrimp and shrimp?

Write a few specific concepts, then give an example and draw some illustrations.

Divide into three groups, take the first group and the second group are commensurate, if equal then there is a false one in the third group, then take two scales from the third group, equal then if light

If the first group is lighter than the second group, then the false one is in the first group, and then two scales are taken from the first group, and if the first group is heavier than the second group, the false one is in the second group

Divide the coins into 3 groups.

Take two groups and place them on the scale, and if they are balanced, the counterfeit will be left in the remaining group;

If there is no balance, the counterfeit is on the lighter end of the scale.

After that, in this group, take two of them up at random and go up to the scale, and the principle is the same as what I just said.

1.Divide it into 3 piles of 3 pieces.

2。Place 2 of these piles squares on either side of the scale, if the balance is balanced, the counterfeit is in the 3rd pile, if it is not balanced, the counterfeit is in the lighter pile, 3. Place two counterfeit coins on either side of the balance from the pile containing counterfeit coins, and if the balance is balanced, the counterfeit will be the other coin, and if it is not balanced, the counterfeit will be the lighter one.

It is numbered 1-9

Take the number of coins The number coins are placed on both sides of the scale.

If it is generally sinking, then the counterfeit currency is . Take it on both sides of the scale, if it is generally heavy, then the counterfeit is 9, if it is not generally heavy, then the light is a fake ball.

If it is not generally heavy, set it light. Take it on both sides of the scale, if it is generally heavy, then the counterfeit is 3, if it is not generally heavy, then the light is a fake ball.

3 3 3 points a, b, c 3 groups.

Take any 2 of these groups and place them on the scale.

The balance is on the remaining group.

The imbalance is on the lighter group.

So there were only 3 left.

Take any 2 of them and place them on the balance.

Balance is the rest of the one.

The unbalanced is the light one.

Yes. Divide the 9 coins into three ABC groups, take two A and B groups and put them on both sides of the scale, if the balance is flat, the counterfeit is in C, if it is not balanced, the counterfeit is in the light group.

According to this idea, two more of the group with counterfeit coins are placed on the scale, and the counterfeit coins can be found.

To promote this problem, each time you weigh it, you can narrow the range to 1 3, then there is a counterfeit currency in the n power of 3 that is lighter, then you can weigh the counterfeit currency n times. For example, if there is a fake one out of 729 coins, it can be weighed 6 times.

Divide the 9 coins into three equal parts, and for the first time weigh which of the three to find the counterfeit (3, 3, 3, if the balance is balanced, the counterfeit is not in the three; If it is not balanced, the counterfeit money is in the light of the three), the second weighing, as the first weighing, to find which is the counterfeit money.