Hand-held devices called clickers have transformed Idaho teacher Jill Hanford's sixth-grade classroom, she says, by giving her real-time feedback on student progress. "It's fun," said student Sydney Dominguez, who uses the device in Hanford's math class. "Also, it's way easier than having to raise your hand, and you don't have to share your answer with the whole class, so you won't get embarrassed."

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