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发明名称
小学数学加减法演示器
摘要
本实用新型公开了一种小学数学加减法演示器,它包括黑板本体(8),在所述黑板本体(8)左侧边框上通过螺栓(7)安装有固定板(1),所述固定板(1)上分别安装有上横杆(2)和下横杆(3),所述上横杆(2)和所述下横杆(3)上分别穿入若干带圆环的圆珠(4),采用这种结构,实现了使用方便,在小学教学过程中能够将理论与实践相结合的效果。
申请公布号
CN202331926U
申请公布日期
2012.07.11
申请号
CN201120487531.X
申请日期
2011.11.20
申请人
陈计娟
发明人
陈计娟
分类号
G09B19/02(2006.01)I
主分类号
G09B19/02(2006.01)I
代理机构
代理人
主权项
一种小学数学加减法演示器,它包括黑板本体(8),其特征在于:在所述黑板本体(8)左侧边框上通过螺栓(7)安装有固定板(1),所述固定板(1)上分别安装有上横杆(2)和下横杆(3),所述上横杆(2)和所述下横杆(3)上分别穿入若干带圆环的圆珠(4)。
地址
272100 山东省济宁市兖州市兴隆庄镇中心小学
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