The GraphGrid frame Detailed description The GraphGrid frame is yellow with a thickness of four milimetres. It is placed on the TactiPad like a picture frame. Eight oval holes in the frame fit around the knobs of the TactiPad to hold it in place. Three of the four corners are rounded. Along the inner edge, small curved hooks are placed at a regular interval of 1 centimeter. Along the outer edge of the GraphGrid, indentations …
Hyperbole; tool to draw y=1/X Global description The global shape of the tool is a rectangle hook with the curved contour at the inner side. Pushpin markers are provided at the top surface. A small square for alignment is left out at the lower left corner of the tool. By nature of the formula, the tails of the tool become very thin. To maintain the sturdiness of the tool, additional material has been added. the …
Lens; tool for convex and concave lens or mirror Global description When placing the tool with its shortest straight side horizontally, the tool Is symmetrical. It could be describe as a traditional three story house. However, the top part is curved. The ground floor is a big rectangular window, the mirror template. The first floor has a window with the shape of a concave lens. The second floor shows a window representing the convex lens. …
Parabola; X to the power of 2 Detailed description The inner space of this U-shaped tool has the contour of the formula X to the power of two. The two poles of the U have indented centimetre indications along the outside. Three medium size alignment indents are provided near the bottom; one in the middle and one in each of the two poles. Pushpin markers are provided in the top surface of the tool. The …
SinTang; combination tool for the sine, cosine and tangent graph Global description The SinTang tool combines graphs for two formulas; the sin(X) and the tan(X). More precise, a half period of the sine graph and a quarter of the tangent graph. The sine graph, is the ‘hill’ contour which is the first half period of the sine graph. The cosine is a to the left shifted sine graph. When placing the tool looking at the …