Cao Chong Weighs an Elephant

How much does an elephant weigh? How do you know? How would you know if you didn’t have a modern scale? Six-year-old Cao Chong, the most famous child prodigy in Chinese history, faced just this problem! Chong watches as the prime minister’s most trusted and learned advisors debate different methods. The principle of buoyancy and a little bit of creative thinking help this boy come up with a solution.

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Songju Ma Daemicke grew up in Jilin, China, where she enjoyed listening to the stories her grandparents told. Songju moved to the United States in 1996. After obtaining a master's degree in computer science, she worked as a software engineer until her twin daughters were born. Songju has always excelled in math and has recently gravitated back to her early love of literature and stories. A Case of Sense is her debut picture book. Songju lives in Illinois with her husband and their daughters.