发明名称 Mathematics teaching aid
摘要 An apparatus and method for teaching involving teaching manipulatives. The teaching manipulative comprises a longitudinal rod having a plurality of multi-faced objects disposed upon its surface which are capable of substantially sliding along the length of the rod and have a unique object identifier disposed on each face. On either end of the rod is a stop member having a row identifier substantially in alignment with the unique identifiers on the faces of the multi-faced object.
申请公布号 US7828553(B2) 申请公布日期 2010.11.09
申请号 US20070860054 申请日期 2007.09.24
申请人 BAERG CARLA 发明人 BAERG CARLA
分类号 G09B19/02 主分类号 G09B19/02
代理机构 代理人
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