Select a subject to draw from. Photographs or live subjects will work just fine.
Draw the line from the base of the stem, upwards through the leaf. The lines of the stem will be thick, bold and graceful. Draw with confidence. The lines on the final product should be unbroken, not sketchy. If you are feeling uncertain, draw lightly at first, creating a visual road map that you can follow with confidence later.
Starting with the end of the stem, trace a line around for the exterior of the leaf. Again, the finished line should be elegant and unbroken, so if it makes you feel more comfortable, draw lightly at first and then trace around the leaf again with a darker, bolder line when you have drawn a line you're content with.
From the center of the leaf where it attaches to the stem, draw the three central veins of the leaf (one will point straight down, and the other two will point out to the upper left and right corners of the leaf).
From the three central veins, draw the minor veins. Pay close attention to the direction the veins grow in. Do not place the veins in the leaf willy-nilly. Count the number of veins on each leaf and draw them in the appropriate direction from the central vein they shoot off from.
Lightly shade the image. Darken the shadows until they have reached the desired saturation.
Repeat steps two through six as necessary until the drawing is complete. A typical elephant ear plant will have between three and eight stems with a leaf at the end of every one.