Amazon.com description: Product Description: As new scientific discoveries led to improved technology, America rapidly became a modern, industrialized nation. Find out why half of all industrial workers during this time were children ten years old and younger who didn't attend school. How did this change? Through maps, charts, and timelines students will discover how drastically life has changed since the early 1800s. This title will allow students to cite textual evidence to support analysis of what the text says explicitly as well as inferences drawn from the text.