Kate raised her hand...then put it back down.

Kate raised her hand again...then put it back down.

Kate raised her hand a third time...

Her classmates kept stealing her ideas!!! Well, it was technically not stealing, because they had no idea she was thinking the same thing. Kate couldn't help but get frustrated, though. Next time, she had to be faster. When a fourth idea came to mind, Kate quickly raised her hand. "Cell phones use data for some of the features. You have to pay for the data, and if you accidentally use too much data, you have to pay even more money," she said, pointing out how much some of the features can cost.