Gladys worked on a huge computer. It was the size of a refrigerator! She solved math problems on the computer. Sometimes the computer was wrong. Dr. West fixed the computer’s mistakes!
Photo Credit: Samantha Ohlsen / Alamy Stock Photo
America turned 100 in 1876. There was a big fair. … read more
On June 14, America celebrates Flag Day. Let’s find out … read more
In a family, children learn many things from their parents. … read more
© 2026 McGraw-Hill Education. All Rights Reserved.