Draw and color a simple Native American pattern or image on a piece of cardboard that is at least 6 inches by 6 inches. Beginners should choose one color for the pattern or image and one color for the background.
Lay the cardboard on a flat work surface. Mark a 1/2-inch notch every 1/4 inch along the left and right edges of the cardboard. Cut each notch.
Tie a knot at the end of a skein of wool yarn. Slide the yarn through the notch on the lower left-hand corner of the loom with the knot to the back. Tape the knot to the back of the cardboard to secure the yarn. Weave the yarn up through the notch, across the board and down through the corresponding notch on the opposite side of the loom.
Bring the yarn up through the next notch along the right-hand side of the loom. Weave the yarn across the loom and down through the second notch on the lower left-hand side. Continue weaving the yarn in that manner until the loom is fully lined. Cut and knot the end of the yarn. Tape the knot to the back of the loom.
Thread a large needle with a 4-foot-long strand of woolen yarn or twine in the background color for the blanket. Turn the loom so the stretched yarn strands are positioned vertically. Tie the opposite end of the yarn to the first stretched yarn on the lower right-hand side of the loom. Move the needle over the first yarn strand and under the second strand along the bottom of the loom. Continue alternating over and under each strand until the end of the row is reached. Turn the needle around and alternate over and under the yarn strands for the second row of the blanket.
Let go of the needle when the weaving reaches the area of the cardboard pattern and requires a new color. Cut a 4-foot-long strand of the corresponding yarn color. Tie the end of the new yarn strand to the first string over the color portion of the pattern. Thread a needle and weave the yarn over and under the stretched yarn on the loom, creating the image. When only 2 inches are left, tie a knot with the weaving yarn around the stretched yarn. Cut and thread a new strand of yarn as needed.
Let go of the second needle and pick up the first when the background color returns on the cardboard pattern. Continue weaving with the two colors until the last row of stretched yarn is complete.
Cut the yarn in the two notches at the lower, left-hand corner. Tie the two ends together at the woven edge to secure the blanket. Continue cutting and tying around the edge of the blanket until it is free from the loom.