Primary and secondary school heads want national examinations held as scheduled, warning that any delays would affect the performance of more than 1.6 million candidates.
Kenya Secondary School Heads Association (Kessha) and Kenya Primary School Heads Association (Kepsha) officials said rescheduling the examinations even for one week would affect the candidates' preparations.
"We support the retention of the examination date," said Kepsha National Chairman Shem Ndolo, adding that the candidates were prepared for the tests.
Kessha National Chairman Kahi Indimuli said the candidates were waiting for the tests and should not be shortchanged.
National Super Alliance (NASA) presidential candidate Raila Odinga rejected the October 17 date picked by the Independent Electoral and Boundaries Commission (IEBC) for a repeat presidential election.
NASA wants the exams pushed forward by two weeks to allow them to consult with IEBC.
The teachers were backed by the Kenya Union of Post Primary Education Teachers (Kuppet) and lobby groups who said the national exam dates for Standard Eight and Form Four should remain intact.
Kuppet Secretary General Akelo Misori said children's lives must not stop because of an election.
"We have said it many times that the future of our children is paramount and anyone who tries to unsettle their minds must be condemned," he said.
The Kenya National Examinations Council set the Standard Eight exams to start on October 31 and end on November 2.
The Form Four written exams kick off on November 6-29.