There are three Milankovitch cycles; eccentricity, obliquity, and precession. This video resource explains Earth's tilt, or obliquity, and its precession, which describes Earth's wobble about its axis. These cycles are important for climate change on the order of tens of thousands of years. This resource is recommended for teaching.
Next Generation Science Standards (NGSS)
ESS1: Earth's Place in the Universe
HS-ESS1-4 Use mathematical or computational representations to predict the motion of orbiting objects in the solar system.
ESS2: Earth's Systems
MS-ESS2-6 Develop and use a model to describe how unequal heating and rotation of the Earth cause patterns of atmospheric and oceanic circulation that determine regional climates.