1, game stick.
It consists of 3 1 stick with different fancy, with different scores:
1 mikardo game stick with spiral, 20 points each. Five game sticks, red in the middle and blue on both sides, each 10. Five game sticks, three sections of red and two sections of blue, each with 5 points. 10 red, yellow and blue game stick, 3 points each. 10 red and blue game stick, 2 points each.
First, use the method of "rock, paper, scissors" to decide the order of taking turns playing. The first person started to play: he stood upright on the table with a game stick in his hand and then suddenly let go. The looser the joystick, the better for yourself. The best is the blooming sunflower, which is the best in a single game stick. Just move your finger back and forth slowly, as long as you don't touch other sticks or you can't see other sticks moving, and then you can continue.
You can also use the obtained game stick to pick up the scattered stick, or gently press the tip of the stick with your fingertips, and when the other end of the stick is slightly inclined, carefully take it with your other hand. Those sticks that don't move when playing are his. When one person plays until the stick moves, others continue to play in turn. Repeat this until the joystick disappears. The person who finally gets the highest score on the stick wins.
2. Guess who I am.
Rules of the game: In the process of guessing, you get 1 point. Students are allowed a second chance to guess. Deduct 1 point only if you guess twice wrong.
Each group has a deck of playing cards with the number 1 ~ 10. Every two students are divided into a group. Two students in the same group each touched two cards, and one said the product of the numbers on the two cards in his hand. Another person guessed the numbers on these two cards. Two students in the same group touch three cards each. One person says the product of the multiplication of three numbers on three cards, and the other person guesses what the numbers on these three cards are.
Note that when touching two cards, sometimes the answer is not unique. For example, the product of 24 can be 24=3×8 or 24 = 4× 6; The product of 16 can be 16=4×4 or 16=2×8.
In addition, in the process of guessing, you can have a second chance to guess. Deduct 1 only if you guess wrong twice.
3. Fill in the number game.
In a square with nine squares, each square is filled with one of the three numbers 1, 2, 3, so that the sum of the three numbers on the vertical, horizontal and diagonal lines is equal to 6. Please find out all the filling methods: filling 2 in all nine squares is a filling method. Other filling methods are not so simple, you have to think about it.
First of all, in the center of the square, 1 and 3 cannot be filled in.
Suppose you fill in nine numbers as required. Now, add the figures of the two diagonal lines and the second horizontal line to get 18, and then subtract the sum of the figures of the first and third vertical lines to get 12. The difference of 6 is equal to three times the number of centers of a square. Therefore, the number of square centers can only be 2.
Secondly, to make the sum of three numbers equal to 6, only these three numbers are 1, 2, 3 or all 2. Therefore, at least one number on the four corners of a square is 2. The remaining blanks are easy to fill in.
4. Multiple games. ? ?
According to the seating order, the first student reads 1, then the second student reads 2, and the third student applauds (it is a multiple of 3). Those who don't clap their hands or pronounce the wrong sound will be punished (casually).
5. Team competition.
Eight small oral test papers with the same touch are distributed to the first child in each row. Each child answers a question and passes it on to the next person. After the answer, pass it on to the next person. See which is the fastest. Calculate time. Then rank it.
6. Teachers and students play guessing games together.
Students think of a number in their minds, multiply it by 2 plus 20, and tell the teacher this number, and the teacher will immediately know what the students are thinking.
7. Know the game of the relationship between adjacent numbers.
First, put the four sevens in the card side by side, then three people each take half of the card, and the two sides take turns to play cards. With seven as the center, connect the dragons according to the adjacent relationship of numbers, for example, connect the eight above the seven, and connect the six below the seven, so that each seven can be connected. You can only receive one card at a time. If there are no cards to collect, the opponent will continue to play cards until all the cards are played. Whoever plays first wins.
Refer to the above content: Baidu Encyclopedia-100 cases of primary school mathematics classroom games