Learning the actual situation, students are more interested in mathematics learning. Mathematics class is vivid, vivid and interesting, which is closely related to life and very close to students' lives, making students like mathematics class very much. The characteristic of students is that they prefer learning activities in the form of games. In the game, they not only had fun, but also really learned knowledge. Most students have basically completed their study tasks this semester, but only a few students have great difficulties in learning because of their fun. Many students often copy wrong numbers and symbols. They hate simple exercises. Second, the main content of the review 1, skillfully count the number of objects within 20, distinguish a few from the first, master the order and size of numbers, master the composition of numbers within 10, and read and write numbers from 0 to 20. 2. Know the meaning of addition and subtraction and the names of each part in the addition and subtraction formula, know the relationship between addition and subtraction, and skillfully calculate the addition of one digit and the subtraction within 10. 3. Initially learn to solve some simple practical problems according to the meaning and algorithm of addition and subtraction. 4. Know these symbols "="

2. Proficient in oral calculation of addition and subtraction within 10, and accurate and fast oral calculation of carry addition within 20.

3, will recognize four common three-dimensional graphics, know all the time.

4. Solve simple practical problems according to the meaning and algorithm of addition and subtraction.

Review key points: skilled in addition and subtraction within 10, accurate and fast in addition within 20.

Review difficulties: according to the meaning and algorithm of addition and subtraction, solve simple practical problems.

Fourth, review the specific ideas.

1, first organize students to review and reflect on their learning process and gains. Let the students talk about what they have learned this semester, what they are most interested in, what they find most useful in life, what they find difficult to learn, and so on. It can also guide students to imagine their own review methods. In this way, students can understand their own learning situation, make clear the goal of further efforts, and teachers can also understand students' learning situation more comprehensively, thus pointing out the direction for targeted review and guidance.

2. Make a general review according to the game activities. Games are the favorite activities of first-grade children. Games allow students to review in play, play in review and develop in the combination of play and review. For example, review the understanding of counting in 20 minutes, and let students play games such as guessing numbers, answering passwords and solitaire to deepen their sense of counting. Another example is the review of addition and subtraction calculation. Without simple exercises, students will get bored. You can design game activities such as climbing ladders and finding friends. Students can skillfully calculate the correct addition and subtraction in play.

3. Close contact with life. When reviewing, we should also closely link mathematics knowledge with daily life. You can design some pictures of life situations, so that students can observe, ask questions and solve mathematical problems from a mathematical point of view. Students can find math problems in life and then communicate in the whole class. Students not only feel that life is mathematics, and mathematics is life, but also all aspects have been developed.

4. Design special activities to infiltrate all kinds of mathematical knowledge. The design of special activities can make the content of review comprehensive and give students the opportunity to comprehensively use what they have learned. For example, students are designed to investigate their classmates' favorite seasons or favorite themes. Students experience data collection and arrangement in the survey, and ask and solve problems by themselves according to the data in the form. In this special activity, the students reviewed the knowledge of counting, addition and subtraction and solving some simple problems with addition and subtraction in 20 minutes. At the same time, they have cultivated their cooperation ability, communication ability and practical operation ability, and gained a good emotional experience. Another example is the special activity "I am the master", where students record the math stories that happened at home one day and then communicate with the whole class.

5. Make a general review according to the actual operation. Practical operation is the favorite form of mathematics learning activities for students in this class.