compass

The geometers of ancient Greece invented a peculiar game for themselves, a game called Construction, whose objective is to draw various geometric figures of interest. We are permitted to use just two instruments: an unmarked straightedge (a ‘ruler’), and a compass. Using these, we can draw a straight line through any given pair of points, and we can draw a circle with any given point as centre and passing through any other given point. (Oh yes, we also possess a pencil and an eraser, please do not feel worried about that!)

In this presentation by Swati Sircar from Shikshamitra hints at the shapes who are behind the constructions.

Here is a step by step guide of how to construct some special angles with compass and straight edge - a Shikshamitra presentation. 

How do we construct different types of triangles using scale and compass? This has been explained in a very simple manner in the presentation given below. 

How many uses can you think of for a paper clip? Inside the classroom, as a TLM.

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