▁to ▁kind erg arten , ▁used ▁for ▁children ▁in ▁the ▁ages ▁between ▁ 1 0 ▁months ▁and ▁ 6 ▁years . ▁The ▁first ▁bar neh ager ▁were ▁founded ▁in ▁Norway ▁in ▁the ▁late ▁ 1 9 th ▁century . ▁Although ▁they ▁have ▁existed ▁for ▁ 1 2 0 ▁years , ▁they ▁are ▁not ▁considered ▁part ▁of ▁the ▁education ▁system . ▁They ▁are ▁both ▁public ly ▁and ▁priv ately ▁owned ▁and ▁operated . ▁The ▁staff , ▁at ▁minimum ▁the ▁manager , ▁should ▁be ▁educated ▁as ▁bar neh ag el æ rer ▁( k inder g arten ▁teacher ), ▁previously ▁known ▁as ▁før sk ole l æ rer ▁( pre - school ▁teachers ). ▁Children ▁younger ▁than ▁three ▁are ▁often ▁divided ▁from ▁the ▁older ▁children , ▁since ▁the ▁young est ▁are ▁only ▁expected ▁to ▁play , ▁rest ▁and ▁eat . ▁All ▁the ▁children ▁spend ▁time ▁out do ors ▁every ▁day . ▁Many ▁bar neh ager ▁let ▁the ▁children ▁sleep ▁out do ors ▁too . ▁There ▁is ▁also ▁an ▁institution ▁called ▁bar ne park ▁( children ' s ▁park ), ▁which ▁does ▁not ▁need ▁to ▁have ▁cert ified ▁staff . ▁ ▁Peru ▁ ▁In ▁Peru , ▁the ▁term ▁n ido ▁refers ▁to ▁the ▁school ing ▁children ▁attend ▁from ▁ 3 ▁to ▁ 6 ▁years ▁of ▁age . ▁It ▁is ▁followed ▁by ▁primary ▁school ▁classes , ▁which ▁last ▁for ▁six ▁years . ▁Some ▁families ▁choose ▁to ▁send ▁their ▁children ▁to ▁primary ▁school ▁at ▁the ▁age ▁of ▁ 6 . ▁In ▁ 1 9 0 2 ▁the ▁teacher