“九(jiu)年(nian)(nian)一貫制”學校(xiao)(xiao)(xiao)(xiao)，通常是指該(gai)校(xiao)(xiao)(xiao)(xiao)的(de)小(xiao)學和初(chu)(chu)中(zhong)施行一體化的(de)教(jiao)育，小(xiao)學畢業后可(ke)直(zhi)升本(ben)校(xiao)(xiao)(xiao)(xiao)初(chu)(chu)中(zhong)，“小(xiao)升初(chu)(chu)”原則上(shang)不(bu)許(xu)擇校(xiao)(xiao)(xiao)(xiao)流動，希望在本(ben)校(xiao)(xiao)(xiao)(xiao)升初(chu)(chu)中(zhong)的(de)學生(sheng)(sheng)也不(bu)用為上(shang)初(chu)(chu)中(zhong)費盡心(xin)思；九(jiu)年(nian)(nian)一貫制學校(xiao)(xiao)(xiao)(xiao)的(de)年(nian)(nian)級(ji)通常被(bei)稱(cheng)為1年(nian)(nian)級(ji)、2年(nian)(nian)級(ji)……，至9年(nian)(nian)級(ji)。這樣(yang)在學生(sheng)(sheng)年(nian)(nian)齡(ling)較小(xiao)，適應能力較弱的(de)時候的(de)教(jiao)育會有一個連貫性。

"十二年一貫(guan)(guan)制學(xue)校(xiao)(xiao)"是(shi)指集小學(xue)、初中(zhong)(zhong)(zhong)和(he)(he)高中(zhong)(zhong)(zhong)為一體的12年一貫(guan)(guan)制學(xue)校(xiao)(xiao)。學(xue)校(xiao)(xiao)主要有三(san)個特點，一是(shi)連貫(guan)(guan)性，學(xue)生(sheng)(sheng)可(ke)以從從一年級至(zhi)十二年級，相(xiang)繼完成小學(xue)至(zhi)高中(zhong)(zhong)(zhong)教(jiao)(jiao)育，其間(jian)不(bu)間(jian)斷、不(bu)選拔。二是(shi)就近入學(xue)、取消招生(sheng)(sheng)考(kao)試。小升(sheng)初直接(jie)升(sheng)入本校(xiao)(xiao)初中(zhong)(zhong)(zhong)和(he)(he)高中(zhong)(zhong)(zhong)，不(bu)必再受小升(sheng)初、中(zhong)(zhong)(zhong)考(kao)折磨之苦。三(san)是(shi)實行統一的學(xue)校(xiao)(xiao)行政、教(jiao)(jiao)育、教(jiao)(jiao)學(xue)管理。