Third Grade English: Reading Comprehension: Informational Text - Identifying the Author's Purpose and Point

Every author writes with a specific intention, motivation, and perspective known as the author's purpose and point of view. Whether an author wants to convince you to adopt a shelter dog, teach you how volcanic lava cools into obsidian rock, or entertain you with a hilarious narrative about an eccentric scientist, discovering their purpose reveals why the text was created. In this chapter, you will master the PIE formula (Persuade, Inform, Entertain), learn how to identify an author's personal point or claim, and practice evaluating whether an author supports their points with reliable reasons and solid evidence.

The Three Core Author Motives: The P.I.E. Formula

The easiest way to remember why authors write is the classic P.I.E. acronym.

+-------------------------------------------------------------+
|                     THE P.I.E. ACRONYM                      |
+-------------------------------------------------------------+
|                                                             |
|   P - PERSUADE : Convince the reader to believe an idea,    |
|                  change their mind, or take specific action.|
|                                                             |
|   I - INFORM   : Teach the reader facts, real-world data,   |
|                  scientific processes, or true history.     |
|                                                             |
|   E - ENTERTAIN: Delight, amuse, scare, or captivate the    |
|                  reader's imagination with a good story.    |
|                                                             |
+-------------------------------------------------------------+

Purpose 1: To Persuade

When an author writes to persuade, they share opinions and arguments to convince you that their perspective is right.
- Keywords: should, must, best, essential, urgent, agree, unfair.

- Examples: Opinion essays, advertisements, letters to the mayor, debate speeches.


Purpose 2: To Inform

When an author writes to inform, they share objective facts and explanations without trying to sway your personal opinion.
- Keywords: recorded, measured, discovered, according to, history, data.

- Examples: Science textbooks, encyclopedia articles, museum plaques, field guides.


Purpose 3: To Entertain

When an author writes to entertain, their primary goal is storytelling, humor, suspense, or emotional drama.
- Examples: Fictional adventure novels, comic strips, spooky ghost tales, poetry.


Author's Point: What Claim Is Being Made?

In third grade informational reading, an author's purpose often goes beyond general informing; authors frequently have a specific point or claim they want to prove.

+-------------------------------------------------------------+
|               AUTHOR'S POINT AND EVIDENCE CHAIN             |
+-------------------------------------------------------------+
|                                                             |
|                  [ THE AUTHOR'S POINT ]                     |
|         "Recess should be extended to 45 minutes"           |
|                             |                               |
|          +------------------+------------------+            |
|          |                                     |            |
|      [ REASON 1 ]                          [ REASON 2 ]     |
|  Physical activity improves             Unstructured play   |
|  classroom focus and memory.            builds teamwork.    |
|          |                                     |            |
|     [ EVIDENCE ]                          [ EVIDENCE ]      |
|  Pediatric medical study                Survey of elementary|
|  proves 20% test score gain.            recess interactions.|
|                                                             |
+-------------------------------------------------------------+

Fact vs. Opinion

To evaluate an author's point, you must distinguish between statements of fact and statements of opinion.
- Fact: A statement that can be proven true or false through objective evidence, measurements, or historical records (e.g., "Water boils at 212 degrees Fahrenheit at sea level").

- Opinion: A personal belief, feeling, or judgment that cannot be scientifically proven (e.g., "Autumn is the most beautiful season of the year").


Evaluating Reasons and Evidence

Not all arguments are equally strong. As an observant reader, you must judge whether an author actually provides good reasons to back up their claims.

+-------------------------------------------------------------+
|                 EVALUATING AUTHOR'S EVIDENCE                |
+-------------------------------------------------------------+
|  WEAK ARGUMENT (Opinion only, no proof):                    |
|  "Everyone should ride bikes to school because bikes are    |
|   super cool and riding them is super fun."                 |
|                                                             |
|  STRONG ARGUMENT (Reasons backed by facts):                 |
|  "Communities should install bike lanes because cycling     |
|   reduces vehicle traffic by 15% and provides daily         |
|   cardiovascular exercise for growing students."            |
+-------------------------------------------------------------+

Guided Reading Analysis: Community Gardens

Read the editorial below and evaluate the author's purpose, point, and supporting reasons.

A Garden on Every Corner

Every neighborhood in our town should transform empty vacant lots into vibrant
community vegetable gardens. First, community gardens provide fresh, healthy
produce to families living in neighborhoods that lack grocery stores. Last year,
the Oak Street garden yielded over 800 pounds of fresh tomatoes, peppers, and
spinach for local residents.

Second, working in a garden fosters intergenerational teamwork. When retired
grandparents and third-grade students plant seeds together, younger generations
learn hands-on agricultural skills while elderly neighbors enjoy companionship.
Finally, gardens convert dusty, weed-strewn eyesores into green sanctuaries that
attract pollinating bees and butterflies. Converting empty city lots into
community gardens is a win for our health, our friendships, and our environment.

Detective Analysis

  1. Author's Purpose: Persuade (The author wants the town to build community gardens on vacant lots).
  2. Author's Main Point: Every neighborhood should turn vacant lots into community gardens.
  3. Supporting Reasons and Evidence:
  4. Reason 1: Provides fresh nutrition (Evidence: Oak Street garden yielded 800 pounds of produce).
  5. Reason 2: Encourages teamwork across age groups (Evidence: Grandparents teach students planting skills).
  6. Reason 3: Improves environmental beauty (Evidence: Replaces weed-strewn lots with sanctuaries for pollinators).

Practice Exercises and Review

Test your skills with these reading questions.

Exercise 1: Identify Author's Purpose (PIE)

Determine whether each passage was written to Persuade, Inform, or Entertain.
1. "The giant squid lives in deep ocean trenches and has the largest eyes of any living animal, measuring up to ten inches across."

2. "Barnaby the bumbling wizard sneezed so hard that his wand accidentally turned his pet toad into a polka-dot teapot!"

3. "You should definitely vote for Maya as student council president because she listens to student ideas and organizes fun charity fundraisers."


Exercise 2: Fact or Opinion?

Label each sentence as Fact or Opinion.
1. The Pacific Ocean covers more surface area than all of Earth's landmasses combined.

2. Swimming in the ocean is much more exciting than swimming in a pool.


Answer Key and Explanations

  • Exercise 1:
  • Inform (Presents scientific biological facts).
  • Entertain (Comedic fictional narrative).
  • Persuade (Urges the reader to vote for a specific candidate).
  • Exercise 2:
  • Fact (Can be proven using geographic measurements).
  • Opinion (Expresses a personal preference; cannot be measured).