低学年(ていがくねん)lower grades of primary school (first, second, and sometimes third grades)

低(てい)学年(がくねん)の読(よ)み物(もの)には振(ふ)り仮名(がな)がある。

There are furigana in reading materials for lower grades of primary school. {lower grades of primary school (first, second, and sometimes third grades)}

小学校(しょうがっこう)の低(てい)学年(がくねん)は勉強(べんきょう)の基礎(きそ)を学(まな)んでいます。

The lower grades of primary school are learning the basics of studying. {lower grades of primary school (first, second, and sometimes third grades)}

低(てい)学年(がくねん)と高学年(こうがくねん)では体格(たいかく)の差(さ)も学力(がくりょく)の差(さ)も大(おお)きいです。

The physical size and academic abilities greatly differ between lower grades of primary school (first, second, and sometimes third grades) and higher grades. {lower grades of primary school (first, second, and sometimes third grades)}

僕(ぼく)が低(てい)学年(がくねん)の時(とき)は高学年(こうがくねん)の人(ひと)がとても大(おお)きく見(み)えていました。

When I was in the lower grades of primary school, the older students seemed very big to me. {lower grades of primary school (first, second, and sometimes third grades)}

私(わたし)は今年(ことし)から小学校(しょうがっこう)に入(はい)りたての低(てい)学年(がくねん)の学級(がっきゅう)を担当(たんとう)することになった。

I have been appointed to take charge of the lower grades of primary school (first, second, and sometimes third grades) starting from this year. {lower grades of primary school (first, second, and sometimes third grades)}