Now hold up the palmately lobed shape and have someone put their hand on it. They should see the five lobes that are similar to their five fingers. Next show them the pinnately lobed leaf. Explain that it doesn't have a shape that we recognize, but it does have a shape that we can remember. Divide a sheet of paper into four or six sections.
Younger children do better with four sections.
In each section have the child draw one of the leaf shapes in each section. Take the children on a walk. Depending on your location you can do this in a park, on a treed street, or at camp. See how many leafs they can find that match one of the shapes on their paper. Once they have matched their shapes, talk about the different names that trees can have.