The woman walked up to the front door with a piece of chalk in her hand.

The team weighed each piece of chalk before and after using it.

See if you can make work with a piece of chalk on a board!

They may not even have a simple piece of chalk.

Holding up the piece of chalk, she asked, "Anyone else?"

Picking up a piece' of chalk, she wrote down 600,000.

But there definitely was something about a piece of chalk.

Then she glanced at the piece of chalk glowing in her hand.

He picked up a piece of green chalk; wrote Lane's name again, in the place where it had been.

"I'm not responsible for every boy who finds a piece of chalk."