The teacher announces that she is going to hold something behind her back, and the students have to tell her what she has behind her back.©JOKEDEMO.COM

First she holds a ruler and says, "It's long, hard and you can measure with it."©JOKEDEMO.COM

A little girl stands up and says, "It's a ruler."©JOKEDEMO.COM

The teacher replies, "Very good, I like the way you think."©JOKEDEMO.COM

Then she holds a apple behind her and says, "It's red, round and you can eat it."©JOKEDEMO.COM

A little boy stands up and says, "It's an apple."©JOKEDEMO.COM

The teacher replies, "Very good, I like the way you think."©JOKEDEMO.COM

Now little Johnny stands up and says, "Teacher I have one for you."©JOKEDEMO.COM

Little Johnny sticks his hand in his pocket and says, "It's round, hard and has a head on it".©JOKEDEMO.COM

The teacher screams, "Get to the office!"©JOKEDEMO.COM

Little Johnny smiles and says, "It's a quarter