Teaching logical thinking

Is it possible to know how to think logically and still be racist?

Of course not.
Racism is not logical because it starts with two premises:
1. that human beings are not fundamentally equal 
2. that each person acts as a representative of his or her race
Neither of these are true.

This means that if we can teach students to think logically and to spot logical flaws, then we will have taken one giant step toward erradicating one of the great ills of humankind.