數學
顯示第 1 至 24 項結果，共 262 項
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梵天塔
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磁性智力七巧板
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趣味移動火柴
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面積變化
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1-100數字按壓板
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12件透明立體幾何積木 (10cm)
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12時制二針聯動小鐘面（學生用） 12 hour pupil clock
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20*30cm小白板
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DIY三針非聯動鐘面
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DIY吊掛式天平
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演示用磁性活動角度演示器 Magnetic angle learning sticks for demo set 4
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DIY日曆筆筒
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DIY遊標尺
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DIY電子鐘
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T字之謎
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一平方米演示器
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六面磁性正方體 2cm 50粒
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可量身高體重磅
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大號雪花片積木750片套裝
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小熊塑膠砝碼(共672g)
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幾何立體搭建套裝
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幾何立體模型(實木)27件套
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幾何立體的截面實驗器
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探索體積的計算公式學具
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