Education: teachers; performance evaluation systems for public school teachers and school administrators; modify. Amends secs. 1249, 1249a, 1249b, 1250, 1280f, 1531j & 1531k of 1976 PA 451 (MCL 380.1249 et seq.).  TIE BAR WITH: HB 4905'19 , HB 4906'19