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How many grains of rice in this bowl?

October 17th, 2004 · 3 Comments


Earlier this month the girls and I read A Grain of Rice. In this story set in fifteenth century China, a poor but clever farmer’s son wants to marry the Emperor’s daughter. After he creates a potion that helps cure the Princess, he asks for his reward to be one grain of rice…at doubled each day for 100 days. So on the first day he receives one grain, two on the second, four on the third, eight on the fourth….131,072 on the eighteenth…524,288 on the twentieth…

As an exercise, and to prove the truth of the story, I decided we should count how many grains were in a cup of rice. I ended up counting one quarter of a cup. Abigail helped. Any guesses for how many grains in this bowl of one cup…or how many days it would take the farmer’s son to receive this much rice?

Tags: homeschool

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