1. The 'Electricity Relay' Game
Game Rules: The teacher gives a multiplication question (from the tables the students have learned). If the student answers correctly, they can invite another student to answer, either by asking a multiplication problem or requesting the result. If a student answers incorrectly, they are not allowed to invite anyone else and must step up to the teacher’s desk. The teacher continues the game.
Example: Learning the 'Multiplication Table of 3'
The teacher asks, '3 x 1 = (Mai)'. Mai answers '3 x 1 = 3' and gets to ask the next problem: '3 x 2 = (Hà)'. Hà answers '3 x 2 = 6' and proceeds with the next problem. If anyone cannot answer, they step up to the teacher’s desk, and the teacher continues the game. If two or three students struggle to answer, the teacher reviews the multiplication table of 3 (2-3 times) and assigns a group leader to review it with the students in the next class.

2. The 'Student Interaction' Game
Objective: To help students become confident and vocal in expressing their opinions, promoting a sense of democracy among learners.
An example of a conversation:
Teacher asks: Out of the multiplication tables we've learned, which one is your favorite?
Student: I like the multiplication table of 4.
Teacher: Why do you like the multiplication table of 4?
Student: Because there are 4 people in my family.
My neighbor An's family and Hương's family also have 4 people, teacher! So the three families together have 12 people in total.
Teacher: How did you calculate the total number of people so quickly?
Student: Well, I multiplied the number of people in An and Hương's families: 4 x 2 = 8. Then I added the 4 people from my own family: 8 + 4 = 12.

3. The 'Relay' Game
Game rules: Divide the class into two teams, each consisting of 4 students. Both teams will write out a multiplication table. The first student writes one multiplication problem and passes the chalk to the next student to continue. This process continues until the table is fully written. The team that completes the table faster and correctly earns 1 point for each correct multiplication problem.
The teacher will summarize and give praise to the winning team.

4. The 'Reporter' Game
Objective: This game helps students reinforce what they've learned while improving their ability to handle situations quickly, building their confidence and assertiveness.
Materials:
- Select a capable student to act as the reporter.
- All students in the class participate in the game.
How the game works:
The teacher invites student A to be the reporter.
Student A goes to the board and introduces themselves:
"Hello, second-grade students! I am a reporter from the 'Hoa học trò' newspaper, and today, I'm here to interview some of you. Would you mind answering a few questions for me?"
The entire class responds: "Yes, of course!"
Student A turns to student B: "Hi, can you tell us about yourself?"
Student B stands up and introduces: "My name is Trần Minh Vũ, and I am a good student in this class."
Student A asks: "Would you mind if I ask you a few questions?"
Student B replies: "I'm ready!"
Student A asks: "What is 3 x 8? And what is 24 ÷ 3?"
Student B answers: "24" and "8."
Student A thanks student B and moves to student C.
Student A asks: "Hello! Could you please introduce yourself?"
Student C replies: "I am Nguyễn Thị Thu Trang."
Student A asks: "Would you mind answering some questions?"
Student C responds: "Sure!"
Student A asks: "What is 4 x 3?" Student C answers: "12."
Student A continues asking: "What is 12 ÷ 4?" Student C replies: "3."
And finally: "What is 12 ÷ 3?" Student C answers: "4."
Student A thanks student C and continues inviting other students to participate.
The reporter game usually lasts 5-6 minutes, with many students taking turns answering questions.
For advanced students, the reporter can ask more difficult questions, while average or weaker students can be asked simpler questions. (This is usually prepared by the teacher in advance.)
While the game is in progress, the teacher observes and praises students who answer quickly and correctly, while offering guidance to those who make mistakes.

5. The Bee Game: Finding the Nectar
Objective: Foster teamwork among students.
Help students easily memorize multiplication and division tables.
Materials: Two five-petaled flowers, each in a different color, with the petals labeled with numbers (results of multiplication prepared by the teacher), and magnets on the back.
Ten bees, each with a math problem written on its body, also with magnets on the back.
Game Instructions: The teacher divides the class into two teams, each consisting of 4 students.
The teacher splits the board into two sections, placing a flower and five bees on each side, in random order.
The teacher explains the rules to the students: there are two flowers with the correct results of math problems on the petals, while the bees carry the math problems and need to find their corresponding results. The students' task is to help the bees match their problems to the correct answers.
The two teams line up, and upon hearing the starting signal, each student takes turns connecting the math problems to the correct results. The first player connects the first problem and passes the chalk to the next player, and so on until all problems are matched. The team that finishes correctly and faster within one minute wins.
Note: After the game, the teacher should review the results and ask a few questions to reinforce the lesson.

6. The Electric Shock Game
Objective: Help students learn multiplication and division tables (designed for 3rd-grade students).
Game Duration: 7 – 10 minutes.
Game Rules: The teacher divides the class into two teams for a competitive challenge. The teacher starts the game by announcing a math problem, such as 5 x 9, and points to a student from one of the teams. The student must quickly state the correct answer. If correct, the student can 'shock' a member of the opposing team. They then ask a problem, for example, 50 ÷ 10, and point to a student on the other team, who must promptly give the correct result. The game continues with each team taking turns 'shocking' each other. The teacher and two assistants track the correct answers. At the end of the game, the team with the most correct answers wins.
Note: If a student hesitates or fails to give the correct answer when it's their turn, they lose their chance to answer and 'shock' another student. The teacher will then choose a different student to continue the game.

7. The Postman Number Game
Objective: To help students memorize the multiplication table for 2 and the division table by 2.
Incorporating a habit of speaking: Thanking someone when they assist with a task.
Preparation:
Several cards, each containing a number between 1 and 20, will serve as house numbers. Envelopes containing multiplication and division problems related to the table of 2 should also be prepared.
How to play: The game can be played outdoors or in the classroom. The teacher hands out a card to each student to mark their house number. One student takes on the role of the postman and walks around, reciting: 'Children, I am the postman, coming from afar, reaching here, please tell me your house number... 12.'
When the postman reaches the end of the sentence, the student whose house number matches raises their card to receive the letter. At this point, the postman quickly checks to find the letter corresponding to the correct mathematical operation. The householder should thank the postman upon receiving the letter.

8. The game "The Final Answer"
Objective: To help students improve their mental calculation skills.
Time: 5 minutes.
Preparation: Several pictures or real objects for illustration.
Participants: 4 groups, each with 2 representatives: one asking questions and one answering.
Each group responds to 4 images (or real objects).
Game rules:
- Correct answer: +1 point.
- Incorrect answer: -1 point.
The teacher displays an image and asks a question, offering multiple answers for the students to choose the one that corresponds to the image, such as:
a) 3 x 2 = 6
b) 3 + 3 = 6
c) 3 x 3 = 9
d) 3 x 1 = 3
Representative from Group 1: 'My final answer is option c.' The teacher confirms: '3 x 3 = 9 is the correct multiplication.'
The class applauds Group 1 for their correct answer, and the teacher records: Group 1 - 1 point.
The process continues with other groups, and the teacher summarizes and announces the winning group.

9. The game "Fishing"
Number of players: 4 groups
Each group has 2 students:
- One student holds the fishing rod
- One student holds the fishing result (multiplication answers)
Preparation: A 1-meter long fishing rod with a hook and cards with multiplication problems and their results written on them.
Game rules: The student who catches a fish hands it over to their teammate, who then sticks it on the classroom board.
The group that catches the most fish (solves the correct multiplication problems) wins.
For example:
Group 1:
- 3 x 2 = 6
- 3 x 4 = 12
- 3 x 6 = 18
Group 2:
- 5 x 2 = 10
- 5 x 4 = 20
- 5 x 5 = 25
Group 3:
Group 4:
The teacher will summarize and announce the winning group.

10. The game "The World of Arithmetic"
Time: 5 minutes
Preparation: Numbers printed on computer paper and attached to a circular cardboard.
How to play:
Each team: 3 students, 2 teams per class
Students will find and attach numbers and operations. The team that completes the task correctly and faster wins and receives a prize.
This is a motivational activity encouraging students to strive for excellence in learning and practice quick thinking.

