Professor Tisdell's new geometry tool (TGT) is now part of the Mathomat V3 template. This new feature in Mathomat can create all the geometric constructions in the school curricula by using a single radius with a defined centre for rapid and accurate placement. This accurate, safe, and efficient way to draw geometric constructions is demonstrated in Chris's geometric construction video series, and in the paper Beyond the Compass by Chris and David Bee Olmedo. The TGT is also a hands-on way of constructing geometry, consistent with our design philosophy of fostering learners as builders and inventors. The physical nature of the TGT keeps students in contact with geometry in a physical sense while encouraging abstract thinking in terms of the points, lines, and arcs inherent in the tool and its use.
The TGT is positioned close to the straight edge on the left side of the Mathomat template for maximum coordination between both while drawing
Product Specifications
- The tangram tool. Can be used to construct the three different sized triangles needed to complete the ancient Chinese tangram puzzle. These are complemented by other matching tangram shapes in the Mathomat V3.
- The regular polygon expansion scale. Will construct extra-large (50mm sided) regular polygons from similar shapes in Mathomat.
- The arc builder scale. Will create extra-large arcs and circles.
- Length : 20 cm
- Width : 20 cm
- Height : 20 cm
