Attribute blocks

Attribute blocks, also called logic blocks, are mathematical manipulatives used to teach logic. Each block in a set has a unique combination of four attributes, namely size, color, shape, and thickness.¹

References

Dienes, Z. P.; Golding, E. W. (1976). Learning Logic, Logical Games. London, England: University of London Press. pp. 17–18. ISBN 0-340-15791-7.

[Dienes_1976-1] Dienes, Z. P.; Golding, E. W. (1976). Learning Logic, Logical Games. London, England: University of London Press. pp. 17–18. ISBN 0-340-15791-7.

1