Abstract: An educational device for aiding in the projection of views of an object. The device includes a first half-hexahedron composed of a bottom panel, a first vertical panel and a second vertical panel. The panels are perpendicular to one another and together define a corner space for accommodating an arbitrarily configured object supportable on the bottom panel. There is further provided a second half-hexahedron composed of a transparent top panel, a transparent third vertical panel and a transparent fourth vertical panel. The panels of the second half-hexahedron are perpendicular to one another and together define a corner space. The second half-hexahedron is removably positionable on the first half-hexahedron such that the first and the second half-hexahedrons form a complete hexahedron. Grid markings are provided on the three panels of the first half-hexahedron and on the three panels of the second half-hexahedron.