Themes: Virtual Reality, Technology, Nonfiction, Tween. Students will learn about the history and ever-evolving technology behind virtual reality and explore what is possible with VR now and in the future. Red Rhino Books Nonfiction is the first Hi-Lo children's nonfiction series at a first-grade reading level for students in grades 4–7. Visually appealing fullcolor photographs and illustrations—along with fun fact boxes—keep these books flowing. Also includes prereading comprehension questions along with a 20-word glossary for further reading support.