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Understanding the Dewey Decimal System: Exploring Library Organization and Information Skills

The Dewey Decimal System, invented by Melvil Dewey in 1876, remains a crucial framework for organizing nonfiction books in libraries worldwide. It categorizes materials into ten broad subject groups, each represented by a unique call number combining numbers and letters from the author's name. This system aids learners in exploring various sources for reading, listening, and viewing. By mastering this categorization, students can evaluate information effectively and strengthen their research skills, making it easier to find the information they need on any given subject.

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Understanding the Dewey Decimal System: Exploring Library Organization and Information Skills

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  1. The Dewey Decimal System

  2. Information Skills Standards Competency Goal 1: The learner will EXPLORE sources and formats for reading, listening, and viewing purposes. Competency Goal 2: The learner will IDENTIFY and USE criteria for excellence to evaluate information and formats.

  3. Facts about the Dewey Decimal System • Invented by Meville Dewey in1876, over 100 years ago! • Libraries all over the world still use his system. • The Dewey Decimal System is used with nonfiction books. • Books are grouped by subject to make it easier to find all possible information on one subject.

  4. Call Numbers • Each book is assigned a call number. • Call numbers are made up of numbers and letters. • Numbers represent the subject area. • The letters come from the first three letters of the author’s last name.

  5. Subject Groups • There are ten broad groups in the Dewey Decimal System. • Each group contains subgroups; these subgroups are numbered by tens (10, 20, 30, etc.) • You will need to learn only the ten broad groups.

  6. 000s- General Works • Encyclopedias • Almanacs • Books on unexplained subjects like aliens!

  7. 100s- Philosophy & Psychology • Books in this category explain how we think and feel. • Optical illusion books • Q & A books • Books about our brain

  8. 200s- Religion & Mythology • Books in this category contain information about different religions. • They also have religious stories, like Bible stories. • Greek & Roman myths can be found in this group.

  9. 300s-Social Sciences • Books in this category give information about how people live together. • Subjects such as holidays and customs can be found here. • A special group to remember: 398.2 (Folktales, fairy tales, & fables)

  10. 400s-Language & Grammar • Books in this group provide information about different languages (Spanish, French, German, etc.) • This group also contains information about grammar (nouns, verbs, adjectives, etc.)

  11. 500s-Science • Books in this group provide information about things in nature. • Subjects include plants, animals (like dinosaurs), space, & mathematics.

  12. 600s-Technology • Books in this group tell about technology invented by humans. • Subjects include computers, cars, airplanes, space travel, & medicine.

  13. 700s-Arts & Recreation • Books in this group tell about how people have fun! • Subjects include art, drawing, music, crafts, joke books, and sports.

  14. 800s-Literature • Books in this group are stories, plays, & poetry. • An important subgroup to remember is 811 (Poetry)!

  15. 900s-Geography & History • Books in this group give information about events in the past and places around the world. • Subjects include American history, explorers, Native Americans, & atlases.

  16. Now, let’s review! • Look at the tub of books and cards on your table. • As a group, match the Dewey Decimal subject numbers with the correct book. • When your group is finished, give me a thumbs up. • You may use the next slide for help. 

  17. Dewey Decimal Groups • 000s-General Works • 100s-Philosophy & Psychology • 200s-Religion & Mythology • 300s-Social Sciences • 400s-Languages • 500s-Science & Math • 600s-Technology • 700s-Arts & Recreation • 800s-Literature • 900s-Geography & History

  18. Remember… • Nonfiction books are organized using the Dewey Decimal System. • Books are grouped by subject. • There are ten general groups. • Books receive a call number which is made up of a subject number and the first three letters of the author’s last name.

  19. Information for this presentation found at… http://www.mikids.com/Deweygroups.htm http://www.scottpublib.org/dragon/Dewey.html http://www.breitlinks.com/dewey_for_kids.htm

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