Biggest Ideas: Nancy Johnson Inventor of the Ice Cream Maker delivers a fun, screen-free 28-minute audio biography for children aged 610, recounting how Nancy Johnson revolutionized frozen treats by inventing the hand-crank ice cream maker in 1843. Through engaging storytelling and interactive quiz segments, listeners explore creativity, engineering, and invention history while learning scientific vocabulary and the mechanics behind churning delicious ice cream. This audio card promotes historical awareness, STEM curiosity, listening comprehension, and problem-solving. The included quiz reinforces retention and confidence, inspiring young innovators to see everyday inventions as gateways to creative thinking.