Pythagoras and the Ratios: A Math Adventure by Julie Ellis
A boy’s quest to tune a pan flute and a lyre illustrates some of the many uses of mathematical ratios. (Ages 9 – 12)
Charlesbridge, 2010, 32 p., $16.95.
A boy’s quest to tune a pan flute and a lyre illustrates some of the many uses of mathematical ratios. (Ages 9 – 12)