Number, Measurement and Space, module establishes equivalence of sets by a one-to-one exchange of objects. Eg Upsetting equivalance (destroying conservation of numbers) by adding one object to a set, or taking one away, helps introduce vocabulary for comparing quantity
Seriation, ECC (Early Childhood Curriculum) module is designed to find the seriation of length, two sets of objects, color, multiple seriation, and transitivity, Language models that can be introduced are interrogative expressions of coordinations, expression of conditional
Lighting Kit, Suitable for opto electronic scanning of light and dark markings on moving objects or in conjunction with a reflecting foil to form a wide spaced obstruction sensor. The intensity of the laser beam is adjusted automatically according to the distance of the object
Classification, ECC (Early Childhood Curriculum) module is designed to help lay a foundation for the beginnings of concrete operations. This kit helps students focus on identifying properties of objects and matching objects. Teacher's guide included
Wards Essentials Trigonometry Puzzle Set, High quality precision-cut Birch verner pure bond plywood, Contains: Step-by-step educational guide, Includes the unit circle, three 30-60-90 triangles, two 45-45-90 triangles, two circular sectors, Kepler's triangle
Resonance Wire, Ring Shaped, For demonstrating the vibration knots in determination of different frequencies. Wire ring with 4 mm plug. Diameter: 290 mm
Digital Counter For event counting, a fixed counting period can be programmed in a range from 0.1 ms to 99999 s. Counter events (e.g. start or stop) can either be triggered by a signal to the input sockets or manually via switches. The unit includes a plug-in power supply.
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