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Mathomat V3B Geometry Template with single scale protractor — Designer Pack
Second edition, with Tisdell’s Geometry Tool. Supplied with poster of drawing ideas in storage wallet
The Mathomat V3 template, designer pack includes a Mathomat version 3 geometry template with a fold out poster of drawing ideas
The Mathomat V3B geometry template
The Mathomat V3b template is the same design as a Mathomat V3 template, but with a single scale protractor. This version of the popular Mathomat V3 template series caters for those classroom teachers who prefer to keep things simple for their students as they learn to use protractors and to measure and draw angles in degrees. The central protractor in the Mathomat V3b template has one scale only, being for degrees. It runs anti clockwise from the positive direction of the x-axis. For bearing measurements the template can be flipped over, so that bearings can be measured in a clockwise direction.
The Mathomat V3 template is the same shape as Mathomat V2 but is 22% larger in area. It has all the same great selection of shapes, arranged in a user-friendly hierarchical pattern around its central protractor that you would expect in a Mathomat. The larger Mathomat V3 template includes many great new features, including:
Tisdell’s geometry tool
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. As pointed out in David and Chris’s paper, the integration of the straight edge and the TGT in Mathomat reduces the complexity and time involved in creating geometric constructions in comparison with the use of a compass and straight edge.
Larger shapes to draw with
In the Mathomat V3 template the side length of the larger group of polygons has been increased to 20mm (from 15mm in the Mathomat V2 template). This allows for drawing useful sized nets to construct polyhedra and other 3-D shapes and for the drawing of larger 2-D patterns such as tessellation designs. It is easier for students to see the geometric structure of these larger shapes.
A useful feature of the Mathomat V3 template is that its larger regular polygons now include a full set of pattern block shapes, which can be used in 2-D drawings to explore the many geometric designs that both primary and secondary schools have developed for these widely used concrete materials.
New geometry tools in Mathomat V3
The new Mathomat V3 includes three new tools that expand its creative potential:
- 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.
The usual great range of Mathomat shapes and scales
The Mathomat V3 template has all the great range of shape stencils such as useful graduated circles, ellipses, regular polygons, quadrilaterals, and graphing curves that you would expect. Mathomat V3 also has the same rich collection of number lines as before, such as a linear radian scale, millimetre, and centimetre scale and 1:20,000 street directory scale.as well as isometric and parallel lines for technical drawing.
