Guided Reading Level M - Hidden World of Viruses (with Lesson Plan)

What This Book Teaches Best
• Viruses are extremely tiny and require powerful microscopes to study.
• Viruses come in different shapes (round, rod-like, and multi-sided).
• A virus is not considered fully living and must find a living cell to begin its work.
• Viruses carry genetic material (DNA or RNA) that provides instructions for how the virus functions.
• How viruses infect cells, make copies, leave the cell, and how antibodies and vaccines help protect the body.

Learning Goals
• Students will explain why scientists use microscopes to study viruses.
• Students will describe at least two shapes viruses can have, based on the text.
• Students will explain why a virus needs a host cell and what happens when it attaches to one.
• Students will describe how a cell becomes a “biological factory” that produces new viruses.
• Students will describe how new viruses leave a cell and spread into the surrounding environment.
• Students will explain how antibodies and vaccines help the body recognize and stop viruses.

Key Vocabulary From the Text
• microscopic — so tiny you need a microscope to see it.
• particles — very small bits or pieces of something.
• genetic — related to information inside living things.
• antibodies — proteins the body makes to help stop viruses.
• vaccines — help train the body to recognize and stop invaders.

Discussion Prompts
• Pre-reading question: Why might something too small to see still matter a lot to people?
• Comprehension questions: What does the book say viruses do that makes microscopes necessary for scientists?
• Comprehension questions: After a virus pushes its genetic material into a cell, what does the message tell the cell to do?
• Comprehension questions: How do antibodies help keep viruses from entering any more cells?

Printing Tips

1. Best Printing Method (Recommended)
   “Booklet” Printing (Best if Available)
   If your printer or PDF viewer supports Booklet Printing, use this.
   Settings to use:
   • Print mode: Booklet
   • Paper size: Letter or A4 (either works)
   • Orientation: Landscape
   • Print on both sides: Yes
   • Flip on: Short edge
   • Scaling: Fit to printable area
   • Booklet subset:
   o First test: Front sides only
   o Then: Back sides only
   This will automatically:
   • Pair pages correctly
   • Put the cover on the outside
   • Align everything for folding
   After printing, fold in half and staple along the spine.

2. If “Booklet” Printing Is NOT Available
   You can still print this correctly with manual duplex printing.
   Step-by-step:

3. Open the PDF.

4. Choose Print.

5. Set:
   o Orientation: Landscape
   o Pages per sheet: 1
   o Print on both sides: Yes
   o Flip on: Short edge

6. Print all pages.
   Because each PDF page already contains two facing book pages, the result will still fold cleanly into a book.