Decanomial Bead Bars with Box
Perles pour décanomial
55 of each bead bar from 1 to 10 allows the child to construct all 100 outcomes of the decanomial: 1X1, 1X2, 1x3 ... 10x8, 10x9, 10x10. This is extremely powerful for aiding a child's understanding of multiplication, squares and the Pythagoras board.
NC: Number and Place Value; Calculation and Arithmetic
WARNING: Not suitable for 0-3 years - Small Parts: Choking hazard.
32x27x4cm including lid