It should be based on the principle of fairness appointment to determine the rights and obligations.

应当依据公平原则确定预约双方的权利和义务。

The two sides will negotiate an appointment to determine the rights and obligations of the contract.

预约确定双方将来洽谈合同的权利和义务。

The appointment of teachers should follow the principle of equality between both parties, schools and teachers have signed employment contract defining mutual rights, obligations and responsibilities.

教师的聘任应当遵循双方地位平等的原则，有学校和教师签订聘任合同，明确规定双方的权利、义务和责任。