发明名称 MATHEMATICS TEACHING TOOL
摘要 A mathematics teaching tool is disclosed. A mathematics teaching tool, according to the present invention, comprises: a protrusion plate including a plurality of protrusions arranged by predetermined rules; and a fitting plate including a plurality of holes into which the plurality of protrusions are inserted so as to be fitted into the protrusion plate, and displaying mathematical concepts on one surface by using one or more characters or one or more figures.
申请公布号 WO2015152447(A1) 申请公布日期 2015.10.08
申请号 WO2014KR02930 申请日期 2014.04.04
申请人 MIN, SEONG-CHEOL 发明人 MIN, SEONG-CHEOL
分类号 G09B23/02;G09B19/02 主分类号 G09B23/02
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