My experience related in this article is based on work in a county where there are schools of all sizes. It is agreed that educational backwardness should be tackled in the Junior school; the question is how this can be done in a county area. In the town where there are Junior and Infant schools of 200 or 300 children it is possible to run backward classes of 20-25 children in each Junior depar...

We present an approach for finding the overlap area between two ellipses that does not rely on proxy curves. The Gauss-Green formula is used to determine a segment area between two points on an ellipse. Overlap between two ellipses is calculated by combining the areas of appropriate segments and polygons in each ellipse. For four of the ten possible orientations of two ellipses, the method requ...