Computers Then and Now
Computers have changed a lot over time. Learn what the different parts of computers were, and how each part looked long ago vs. how it looks now. See examples of vintage computers, and hypothesize about what they might look like in the future!
STEM Explorations is a fascinating new series of 26 informational texts, for grades 1–2, that takes young readers through the worlds of natural science and man-made inventions. Explore weather, seasons, states of matter, and more. Learn how to measure time and temperature, how halves and quarters can be used to share, and how sound travels. Basic nonfiction text features include: table-of-contents, chapters and sub-headings, image captions, easy-to-follow diagrams with labels, enriched vocabulary with pronunciation guides, fact boxes, callouts, glossarys and index.