Quality of habitat vs habitat type. A forest may be a habitat but devoid of most wildlife if all the understory vegetation is taken away. Example NatureMapping Recognize the need for standard units when communicating measurement information. Non-standard units, they should begin to see that standard units are more effective when communicating with others. Example NatureMapping Develop and apply the concept of rate and other derived and indirect measurements.
Grids define regular shapes.
A section is a 1 square mile grid. Non regular delineations are Gap Analysis land cover polygons. Estimate, make, and use measurements to describe and compare phenomena. Measurement should be an active exploration of the real world. Calculate the percentage of canopy closure in a forest or shrubby area.