发明名称 A Educational tools for figure comprehension changeable depending upon viewing angle
摘要 PURPOSE: A learning aid for understanding a figure is provided to help a leaner understand conversion state of the figure which is changed the shape according to viewing position. CONSTITUTION: A plurality of transparently divided hexahedrons(32) is prepared. A plurality of opaque hexahedrons(33) in which width is narrow is prepared. A learning aid is formed by bonding the plurality of transparently divided hexahedrons and the plurality of opaque hexahedrons by turns. The plurality of opaque hexahedrons performs a role as a horizontal band.
申请公布号 KR20120123004(A) 申请公布日期 2012.11.07
申请号 KR20120107233 申请日期 2012.09.26
申请人 发明人
分类号 G09B23/04;G09B1/04 主分类号 G09B23/04
代理机构 代理人
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