Biggest Ideas: Mary Anderson Inventor of the Windshield Wiper delivers a focused 28-minute, screen-free audio exploration for children ages 610, detailing how Mary Anderson created the first manual windshield wiper that improved driver safety in rainy weather. Through engaging narration and interactive segments, listeners learn about engineering innovation, problem-solving, and perseverance in the face of skepticism. This card fosters historical curiosity, mechanical vocabulary, and listening comprehension, while promoting STEM interest and critical thinking. A short quiz at the end reinforces learning, memory, and confidence, making it an inspiring listen for young innovators.