# Parallel or Not? (V2)

## Here, we have a picture of two lines that never intersect.

Would you say the lines shown above are parallel? What do you think? Explain why or why not.

## The two lines shown below never intersect. Move any one (or more) of the 3 points to make them "look" parallel to each other.

What do you notice now?

## The two lines shown below never intersect. Move any one (or more) of the 3 points to make them look parallel to each other.

## The two lines shown below never intersect. Move any one (or more) of the 3 points to make them look like they are NOT PARALLEL.

Without Googling, how would you describe what it means for lines to be **parallel**?

Any pairs of lines above that do not intersect and do not look parallel are said to be **skew lines**.
Without Googling, how would you describe what it means for lines to be **skew**?