By holding the campus mathematics festival, students' interest in learning mathematics can be stimulated, a strong mathematics learning atmosphere can be created, students can get exercise in participating in activities, their confidence in learning mathematics can be enhanced, and their happiness in learning mathematics can be felt. Let every student really enter mathematics, feel mathematics, like mathematics, and get happiness in mathematics learning activities, so as to strengthen the construction of mathematics culture in our school.

1, activity theme: Math Carnival.

2. Activity purpose: to improve students' interest in learning mathematics and enrich their spare time.

3. Performers: All junior high school math teachers.

4. Activity time: the afternoon of September 22, the third quarter, the afternoon of the fun math knowledge contest date (the time when each grade group is independent and unified).

6. Activity target: all junior high school students.

The mathematical content with the theme of Spring Festival is as follows:

1. There are 365 days in the solar calendar and 354 or 355 days in the lunar calendar. We usually use the solar calendar to calculate the date, but the lunar calendar is used to calculate the date of the Spring Festival. Therefore, the annual Spring Festival date is about 365-354= 1 1 (days) earlier than the previous year.

It will be more convenient to calculate the date of Spring Festival with a clock plate. First fix the pointer on the date of this year's Spring Festival, and then turn the pointer counterclockwise 1 1 to know the approximate date of next year's Spring Festival.

3. The mathematical problem of fireworks packaging is perimeter. Take 2×2 fireworks packaging as an example, four arcs are pieced together into a circle, and the length of 1 blue line segment is just the diameter of the circle, so the circumference of the outer circle = the circumference of the circle+the diameter of the circle.

4. Most of the fireworks used in the party are high-altitude fireworks, which can fly to the altitude of 100 to 200 meters. Fireworks with a radius of 20 cm to 30 cm have a radius of about 80 m to 100 m after explosion.

5. Send New Year's greetings. Xiao Ming cut out a square piece of paper with a side length of 1 m, which is 25 cm away from the apex and along a 45-degree angle, forming a small square in the middle, and wrote the five characters "Congratulations on making a fortune" and "Fu" in the picture. The area of the small square with the word "Fu" written in the middle is 2× 0.25× 0.25 = 0.1.25m2. ..