Gina's mother gives her a blue chip after every book she finishes. When she has five chips, her mother treats her to a movie. This form of learning Gina's mother is using is called the____________________.

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The Answer of Gina's mother gives her a blue chip after every book she finishes. When she has five chips, her mother treats her to a movie. This form of learning Gina's mother is using is called the____________________.

Gina's Mother Gives Her a Blue Chip After Every Book