“九年(nian)一貫(guan)制”學校，通(tong)常是(shi)指該校的(de)小學和初(chu)(chu)中(zhong)施行一體化的(de)教(jiao)育，小學畢業后(hou)可直升本校初(chu)(chu)中(zhong)，“小升初(chu)(chu)”原則上不許擇(ze)校流動，希望在(zai)本校升初(chu)(chu)中(zhong)的(de)學生(sheng)(sheng)也不用為(wei)上初(chu)(chu)中(zhong)費盡心思；九年(nian)一貫(guan)制學校的(de)年(nian)級通(tong)常被稱為(wei)1年(nian)級、2年(nian)級……，至(zhi)9年(nian)級。這樣在(zai)學生(sheng)(sheng)年(nian)齡較小，適應能力(li)較弱的(de)時候的(de)教(jiao)育會有(you)一個連貫(guan)性。

"十二年一貫制學(xue)(xue)(xue)(xue)(xue)校(xiao)(xiao)(xiao)(xiao)(xiao)"是(shi)指集小(xiao)學(xue)(xue)(xue)(xue)(xue)、初中(zhong)(zhong)(zhong)和高中(zhong)(zhong)(zhong)為一體的12年一貫制學(xue)(xue)(xue)(xue)(xue)校(xiao)(xiao)(xiao)(xiao)(xiao)。學(xue)(xue)(xue)(xue)(xue)校(xiao)(xiao)(xiao)(xiao)(xiao)主要有(you)三個特點，一是(shi)連貫性(xing)，學(xue)(xue)(xue)(xue)(xue)生可以從(cong)(cong)從(cong)(cong)一年級至十二年級，相(xiang)繼完成(cheng)小(xiao)學(xue)(xue)(xue)(xue)(xue)至高中(zhong)(zhong)(zhong)教(jiao)(jiao)育(yu)，其間不(bu)間斷(duan)、不(bu)選拔。二是(shi)就近入學(xue)(xue)(xue)(xue)(xue)、取(qu)消招生考(kao)試。小(xiao)升初直接升入本校(xiao)(xiao)(xiao)(xiao)(xiao)初中(zhong)(zhong)(zhong)和高中(zhong)(zhong)(zhong)，不(bu)必(bi)再受(shou)小(xiao)升初、中(zhong)(zhong)(zhong)考(kao)折磨之苦。三是(shi)實行統(tong)一的學(xue)(xue)(xue)(xue)(xue)校(xiao)(xiao)(xiao)(xiao)(xiao)行政、教(jiao)(jiao)育(yu)、教(jiao)(jiao)學(xue)(xue)(xue)(xue)(xue)管理(li)。