I. Purpose of the activity:

Can calculate addition and subtraction within 20 correctly and skillfully.

Second, the activity preparation:

Parents prepare 80 crossing problems every day. Add or subtract 20 channels within 10; A dozen plus a few, a dozen MINUS 20; Carry addition within 20 times; Add and subtract 20 channels.

Three. Activity program:

1, the speed of oral calculation is not hard and fast, but it should basically reach 7 questions per minute.

2. After the start of the next semester, according to the test results, the Grade Certificate of Oral Computing Ability of Grade One in Nanmen Primary School will be awarded.

Answer 75-80 questions correctly in 6 minutes-"a little expert in verbal calculation"

Do 66-74 correctly in 6 minutes-"oral calculation level 3"

Do 58-65 correctly in 6 minutes-"oral calculation level 2"

Do 42-57 correctly within 6 minutes-"oral calculation level 1"

Activity 2: Tell it to everyone.

I. Purpose of the activity:

1. By further understanding and mastering the method of comparison through activities, we can correctly compare the size, weight, length and thickness of articles in life. ...

2, can use their own language, combined with the specific situation to express the position and order of the object before and after, left and right, up and down.

3. Through activities, students' abilities of observation, language expression, cooperation with others and simple reasoning are developed.

Second, the activity preparation:

A family portrait, a painting or painting by yourself.

Three. Activity program:

1. At the beginning of school, introduce your family photos or pictures to the children in the same group. It is required to use words in position, order, comparison, etc. Will evaluate each other in the group.

For example, a photo of a family of three can be introduced with comparative knowledge such as "I am shorter than my parents", "My father is taller than me and my mother", "My father is the heaviest and I am the lightest" and "I stand in front of my father".

For another example, a picture of a park can use words such as "up and down, front and back, left and right" to express the position and order in the introduction.

2. Paste your selected works on 16 paper and write down the contents according to the above requirements. (Words you don't understand can be replaced by Pinyin)

Activity 3: Little Designer

I. Purpose of the activity:

1. By combining objects in the shape of cuboids, cubes, cylinders and spheres, students can deepen their understanding of these shapes and identify them accurately.

2. After assembling objects, students can use the statistical knowledge they have learned to count the number of corresponding objects, and can ask related mathematical questions to improve their ability to ask and solve problems.

Second, the activity preparation:

There are several kinds of objects in life in the shape of cuboids, cubes, cylinders and spheres.

Three. Activity program:

1, each student uses the prepared items to spell out his favorite works and give them a name.

2. Please take a photo of your work and paste it above the opening of 16, then fill in the following statistics below, and finally put forward four questions for parallel calculation.

Object shape cuboid cube cylindrical ball

amount

Activity 4: ×× days

I. Purpose of the activity:

1. Through activities, students can further master how to read and how long to read.

2. In the activity, let students realize that they should cherish time and do meaningful things.

Second, the activity preparation:

Make a clock face.

Three. Activity program:

Select an observation object (either his family or a close friend), investigate and understand his day's life, select distinctive and meaningful things to record, and write down his day's schedule at the opening ceremony of 16. How many hours are required and how many hours are studied.

Activity 5: Write 5 articles about math diary.

This morning, just before the first math class, I was thinking silently: What new tricks does the teacher have today? Start class! The teacher came to the classroom with a counter in his hand and a smile on his face. In this lesson, we know three digits through counters: one digit, ten digits and one hundred digits. The teacher told us that the same number is 1, but the position has changed, and the number is far from it! 1 in the unit stands for one, one tenth of 1 stands for ten, and one percent of 1 stands for one hundred. The students all opened their curious eyes. Later, we sat at the same table. You dialed the beads and I wrote the numbers. It was very interesting.

In short, this holiday assignment not only pays attention to the hierarchy and practicality of the exercises, but also reflects the inquiry and pertinence of the exercises, emphasizing students' personal experience and feeling the connection between life and mathematics. Really let students not only consolidate the basic knowledge they have learned, form skills and techniques, but also develop their logical thinking ability and cultivate their ability to solve practical problems. I hope that through the joint efforts of teachers and students, all students can show their wisdom, publicize their personality and experience the joy of doing homework in the process of doing math homework!