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
Some charities make sure people have clothes. During cold weather, … read more
There are many different groups of people in Uganda. They … read more
Blue whales have the biggest hearts of any animal. They … read more
© 2024 McGraw-Hill Education. All Rights Reserved.