1. Examination evaluation: Examination is an effective way to evaluate students' mathematics academic performance through written examination. Examination can evaluate students' basic knowledge, calculation skills, problem-solving ability and many other aspects.

2. Homework evaluation: By assigning math homework, students' mastery of what they have learned in class can be evaluated. Homework evaluation can include classroom homework, homework, exercise books, etc.

3. Classroom observation: Evaluate students' learning attitude, concentration and practical ability by observing their performance in the classroom. Classroom observation can help teachers better understand students' learning situation and adjust teaching strategies in time.

4. Performance evaluation: By observing students' performance in actual operation, students' teamwork ability and problem-solving ability can be evaluated. Performance evaluation can help students improve their practical ability, and also promote their teamwork ability.

5. Oral evaluation: Oral evaluation is a timely evaluation method, and teachers can evaluate students' mathematics learning achievements anytime and anywhere. Oral evaluation can include encouragement, suggestions and guidance to students.

The importance of mathematics is as follows:

1. Mathematics is the basis of science and the key to solving various problems. It is not only a tool, but also a way of thinking, which has an important influence on people's life, study and work.

2. Mathematics is the foundation of many subjects. Whether it is physics, chemistry, economy or computer science, it is inseparable from the support of mathematics. For example, mechanics, quantum mechanics and relativity in physics all need mathematics as the basis; Statistical analysis, prediction and decision-making in economics also need the support of mathematics.

3. Mathematics is also an important tool. In the fields of science, technology and engineering, mathematics is widely used in data processing, image processing, signal processing and other fields. For example, in the medical field, mathematics is used in image processing and analysis to help doctors better diagnose and treat diseases.

4. Mathematics is also an important way of thinking. It can help people better understand the world, master the laws and solve problems. Logical thinking, reasoning and proof in mathematics can also help people think and understand problems better.

Mathematics is also widely used in people's life. For example, in the financial field, mathematics is used for risk assessment, investment and financial management; In business, mathematics is used for statistical analysis, market forecasting and decision-making.