數字砂板
2021-04-07
1000 粒金色串珠
2021-04-07
BeadSquares
$239
正方形彩珠 – 非常清晰表達2 次方的數學概念: 1×1 ,2×2, 3×3, 4×4, 5×5, 6×6, 7×7, 8×8, 9×9,10×10
描述
正方形彩珠 –
These squares are to be used in conjunction with the short bead chains. This set includes color bead squares from one unit to 100 squares.
To show a very concrete concept of 1, 2×2 , 3×3, 4×4, 5×5, 6×6, 7×7,8×8,9×9, 10×10
