Unit Plan 17 (Grade 3 Library): Comparing Information Across Sources

Focus: Help students begin using more than one source on the same topic and noticing similarities and differences across them. Students compare what different books, articles, or pages include, organize what they find, and explain how each source helps build understanding in a different way.

Grade Level: 3

Subject Area: Library (Inquiry • Source Comparison • Reading/Response)

Total Unit Duration: 1–3 weeks, 50–60 minutes per session

I. Introduction

This unit introduces Grade 3 students to an important research habit: looking at more than one source on the same topic. Instead of relying on only one book or page, students begin noticing that different sources may include some of the same information while also adding new facts, pictures, features, or explanations. The librarian models how to compare two sources on the same topic and guides students in noticing what is similar, what is different, and what each source helps them learn. This is a strong bridge into later research skills because it helps students understand that learning grows when readers gather information from more than one place.

Essential Questions

• Why might readers use more than one source on the same topic?
• How can two sources be similar and different at the same time?
• How do books, images, headings, captions, labels, tables of contents, and discussion help readers compare information?
• How can I organize and explain what I learned from more than one source?

II. Objectives and Standards

Learning Objectives — Students will be able to:

1. Use books, images, headings, captions, labels, tables of contents, and discussion to gather information and build understanding.
2. Compare two sources on the same topic and identify similarities and differences in the information they include.
3. Sort, group, and organize information from more than one source in a clear and useful way.
4. Explain how one source may add something different or new to a topic.
5. Create or share a product, response, or explanation that clearly shows understanding of a topic or question using more than one source.
6. (Optional Sessions) Strengthen comparison and early research habits through repeated practice with paired sources, simple organizers, and clear explanation of what each source contributes.

Standards Alignment — 3rd Grade (AASL-based Custom)

• L:S1.3b — Use books, images, headings, captions, labels, tables of contents, and discussion to gather information and build understanding.
  • Example: A student uses captions and a table of contents to locate information about frogs in a nonfiction book.
• L:S4.3c — Sort, group, and organize books, resources, or information by topic, genre, text type, feature, or purpose.
  • Example: A student organizes resources into categories such as fiction, biography, science, and history.
• L:S5.3c — Create or share a product, response, or explanation that clearly shows understanding of a story, topic, or question.
  • Example: A student creates a simple poster, slide, retelling map, or oral explanation to show what they learned.

Success Criteria — Student Language

• I can use more than one source to learn about a topic.
• I can explain how two sources are the same and how they are different.
• I can organize information from two sources in a clear way.
• I can notice what one source adds that another source does not.
• I can create a response that clearly shows what I learned from both sources.