Clear out a circular area approximately 5 feet in diameter in your soil. Make sure the soil is well-dug (and fertilized, if desired).
Push the poles diagonally into the soil at least a foot down, so that all the poles are pointing toward the center of the circle. Make sure the ends in the soil are about a foot inside the cleared-out circle in the soil. Try to make the distance between the poles the same so that the tepee is not lopsided.
Tie all the top ends of the poles together with twine. It doesn't matter how you tie them together, just make sure that it makes a secure structure.
Plant the bean seeds a few inches down in the soil. Plant a couple of seeds close to each pole so that the bean plants will grow close to the poles. Water until the ground is moist.
Once the bean plants are tall enough to do so, tie each one loosely to the pole nearest it with twine. From this point, the plants should wind around and grow up the poles by themselves. Once they have reached the height of the tepee, remove the growing ends of the plants as they continue to grow skyward. From planting to growing to the top of tepee should take six to eight weeks.