1, with teacher qualification certificate;
2. Strong expressive ability, quick thinking and profound mathematical knowledge;
3. Love the work of teachers, have affinity and sense of responsibility, and be good at communicating with students and parents;
4. Have a sense of teamwork and obey the arrangement of the school;
5. Have the ability of classroom organization, be good at mobilizing classroom atmosphere, and be able to stimulate students' learning enthusiasm and interest;
6. Familiar with the operation and application of office software;
7. Fluency standard of Mandarin;
8. Have good teachers' professional ethics.
The duties of primary school math teachers are:
1, conscientiously implement the national education policy, master the teaching concept of the new curriculum, change the role well, and strengthen the cultivation of teachers' morality;
2. Care about students' physical and mental health, consciously set an example, set an example, teach and educate people, and be a teacher;
3, undertake the teaching of mathematics courses, and earnestly complete the teaching task.
x£¿ +y£¿ ¡Üx+y
Let x=rcos¦È and y=rsin¦È.
And then r? ¡Ür(sin¦È+cos¦È)
r¡Üsin¦È+cos¦È
I=¡Ò¡Ò xdxdy
=¡Ò(-¦Ð/4