Mathematics

3D Shape Nets

3D Shape Nets

Nets of common 3D shapes. Joints are hinged with interlocking teeth on other edges. There are multiple versions of the

Tactile Protractor

Tactile Protractor

Tactile Protractor In dutch we called this the Brabo, short for Braille boog (arch). This tool allows students to measure

Flow Chart

Flow Chart

A tactile model of a flow chart. Flow charts are used to graphically represent a process and the choices, decisions

Triangle Ruler

Triangle Ruler

This is an adapted triangle-ruler for visually impaired students. This model was designed and tested as part of the 3D4VIP

Percentage Calculation

Percentage Calculation

The triangle helps to build the formulas for the percentage Calculation. There are letters and Braille-signs. The triangle in the

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