The territory and boundaries of member districts shall be changed no more than once annually in accordance with this section. The board of education of such unified school district shall on or before December 31 of each year adopt its resolution specifying the boundaries of such member districts in accordance with changes made in such year. Such board of education shall maintain such member district boundaries along precinct lines insofar as is practicable, and the territory of each member district shall, giving due regard to the population of each member district, correspond as nearly as may be to attendance areas of the senior high schools of the unified school district for the succeeding year. Changes of member district territory and boundaries such that a member of the board of education no longer resides in the member district from which he was elected, whether such changes be made under this section or Kan. Stat. Ann. § 72-1093, shall not shorten the term of such member. Any change of member district boundaries shall be promptly reported to the county election commissioner and the state board of education.