This example gives a short introduction of the CMISS environment and of how to construct a simple 2D mesh. You will use the 2D graphics window to create a simple finite element model. Nodes are located by clicking in the window and particular care must be taken when linking the nodes into elements. The order in which the nodes are selected is critical, but not initially intuitive! Incorrectly specifying this order will result in highly distorted geometries. In practice, mesh creation would be automated (or specified through files), but is manually done here to demonstrate the process.