As a noun:
* The artist used a palette knife to spread the paint on the slate. (referring to the rock)
* The politician's campaign was marred by a series of scandals, putting her chances of re-election on the slate. (referring to a schedule or list)
* The school board has a slate of candidates for the vacant principal position. (referring to a group of people)
As a verb:
* The roof was slated for repairs after the storm caused damage. (meaning to schedule or plan)
* The article was slated to be published in the next issue. (meaning to schedule or plan)
Let me know if you'd like to see more examples!