Probability Resource Kit, includes: 4 different types of spinners, 4 different types of dices, two-sided probability discs, assorted discs, and sticks for many probability activities in mathematics
Attribute Games and Problems, unit was developed as part of the ESS unit to apply certain classification concepts: observation, identification, combinations, ordering and analyzing
Resonance Wire, Ring Shaped, For demonstrating the vibration knots in determination of different frequencies. Wire ring with 4 mm plug. Diameter: 290 mm