Reilley, in determining red vs. sugar maple around here, the leaf edge makes it pretty clear.
Fine toothed edge
http://www.fw.vt.edu/dendro/dendrology/syllabus/factsheet.cfm?ID=1
Smooth edge
http://www.fw.vt.edu/dendro/dendrology/syllabus/factsheet.cfm?ID=2
When helping the Boy Scouts with their Forestry merit badge, we use binoculars help to get a better view of leaves that are high above the ground.
Fine toothed edge
http://www.fw.vt.edu/dendro/dendrology/syllabus/factsheet.cfm?ID=1
Smooth edge
http://www.fw.vt.edu/dendro/dendrology/syllabus/factsheet.cfm?ID=2
When helping the Boy Scouts with their Forestry merit badge, we use binoculars help to get a better view of leaves that are high above the ground.