The Iroquois perform rituals to honor the twins in 'The World on Turtle's Back," illustrating the Iroquoian belief that they must perform certain rituals in order to sustain the Earth.

the twins are gods and it is important to show them devotion.

singing and dancing will ensure the safety of the twins.

the twins enjoy watching ritualistic singing and dancing.

the sun warms our planet, and with the moon, creates the tides. the moon orbits the earth and in turn, the earth orbits the sun. because they appear to be the same size in the sky, the sun, earth and moon work together to create eclipses. when the moon is directly in between the earth and sun

there is a sequence and logical steps to give an answer of a trouble.

1) strategy is necessary to develop an project idea.

2) to study and know the environment where you are going to work ( ecosystem).

3)   the materials resources to built the ideas.

4) to give a priority order in the context that you study. in this case human needs.