1. diversification principle: mathematics teaching evaluation should adopt various evaluation methods, including examination, homework, classroom performance, group discussion, etc. This helps to fully understand students' learning situation and avoid relying only on a single evaluation method.

2. Goal-oriented principle: evaluation should closely correspond to teaching objectives. Teachers should have clear goals at the beginning of teaching, and the contents and methods of evaluation should accurately reflect whether students have achieved these goals.

3. The principle of timeliness: the evaluation should be carried out in time, and the students' learning situation should be fed back in time. Timely evaluation can help students understand their own problems as soon as possible and make adjustments and improvements in time.

4. Principle of fairness: The evaluation should be fair, objective and impartial. Teachers should exclude subjective prejudice and fully consider the individual differences of each student when evaluating.

5. Encouragement principle: Evaluation should have an encouraging effect to stimulate students' interest and motivation in learning. Positive evaluation can encourage students to actively participate and strive to improve.

6. Individualization principle: Every student is unique, and the evaluation should fully consider the individual differences of students. Teachers can conduct personalized evaluation and guidance according to students' interests, abilities and learning styles.

7. Measurability principle: the evaluation content should be measurable, which can energize students' academic performance and performance. This helps to compare students' differences and provide clear feedback.

8. The principle of periodicity: the evaluation should have a certain periodicity, which can not only summarize in stages, but also observe the progress and changes of students.

9. Participatory principle: Students should participate in the evaluation process, understand their own evaluation situation, and have the opportunity to reflect on their own learning process and make a learning plan.

10. Teaching improvement principle: the evaluation results are applied to teaching improvement, providing teachers with information about teaching effect, helping teachers to adjust teaching strategies and improve teaching quality.