Why Capitalization Rules Exist
Have you ever read a text message where nothing was capitalized? It can be confusing! Capitalization (using uppercase letters in certain places) is one of the oldest tools in writing. It helps readers know when a sentence starts, what words are names, and which words carry special importance.
English capitalization rules developed over many centuries. Early writing systems didn't even have separate uppercase and lowercase letters. Let's look at how these rules came to be.
So, the big question is: which words need a capital letter, and which ones don't? That's exactly what this lesson will teach you.
Core Capitalization Rules
There are a handful of key rules that cover almost every capitalization question you'll see on the SHSAT. Think of them as a checklist you can run through every time you see a sentence.
First Word of a Sentence
Proper Nouns
Titles of People & Works
Days, Months & Holidays
Do NOT Capitalize These
Capitalization Decision Flowchart
When you're not sure whether a word should be capitalized, follow this decision flowchart. Start at the top and answer each question until you reach a result.
Notice how the flowchart moves from the most common rule (first word of a sentence) down to more specific ones. On the SHSAT, you can quickly run through these steps in your head when you spot a potential error.
How Capitalization Errors Appear on the SHSAT
On the SHSAT's Revising and Editing Part B, you'll read a passage with numbered sentences. Some sentences contain errors, and one common error type is incorrect capitalization. There are two kinds of mistakes to look for.
Error Type 1: Missing Capital (Under-Capitalization)
A word that should be capitalized is written in lowercase. For example: "My family visited the grand canyon last july." Both Grand Canyon (a specific place) and July (a month) need capital letters.
Error Type 2: Unnecessary Capital (Over-Capitalization)
A common noun is incorrectly capitalized. For example: "The Doctor told me to drink more water." Since doctor is not used as a title before a name here, it should be lowercase: "The doctor told me to drink more water."
Tricky Proper Nouns vs. Common Nouns
| Proper Noun (Capitalize) | Common Noun (Lowercase) |
|---|---|
| Statue of Liberty | the statue in the park |
| Atlantic Ocean | the ocean |
| Dr. Patel | the doctor |
| Spanish (a language) | math class |
| the Brooklyn Bridge | the bridge near my house |
The Complete Capitalization Cheat Sheet
Let's organize every rule into clear categories. The diagram below shows which types of words get capitalized and which stay lowercase.
Worked Example: Finding and Fixing Errors
Let's walk through a sample sentence the way you would on the SHSAT. We'll identify each error and explain the fix step by step.
Common Traps and How to Avoid Them
Certain capitalization mistakes show up again and again — both in student writing and on standardized tests. Here's a quick guide to the most common traps.
| Trap | Wrong ✗ | Right ✓ |
|---|---|---|
| Seasons | I love Fall weather. | I love fall weather. |
| School subjects | She excels at History and Science. | She excels at history and science. |
| Directions vs. regions | Drive South on the highway. | Drive south on the highway. |
| Titles without names | The President spoke today. | The president spoke today. |
| Family titles after possessives | My Uncle is visiting. | My uncle is visiting. |
| Languages (always capitalize!) | She is studying spanish. | She is studying Spanish. |
Connecting to Titles and Advanced Rules
Once you've mastered the basic rules, you can handle trickier scenarios, like capitalizing the titles of books, movies, and essays. These rules come up on the SHSAT and also in your own writing.
| Rule | Details |
|---|---|
| Capitalize the first and last word | Always capitalize the first and last word of a title, no matter what part of speech they are. |
| Capitalize major words | Nouns, verbs, adjectives, and adverbs are always capitalized in titles. |
| Lowercase small words | Short prepositions (of, in, at, to), articles (a, an, the), and conjunctions (and, but, or) stay lowercase unless they are the first or last word. |
| Example | The Catcher in the Rye |
In high school, you'll dive even deeper into style guides like MLA and APA. These guides have slightly different rules for titles. For now, the table above covers what you need for the SHSAT.
Practice Problems
Try these five problems on your own. Each one gets a little harder. After you decide on your answer, check the explanation below.
Capitalization Review
Capitalization tells readers that a word is special. Always capitalize the first word of a sentence, proper nouns (names of specific people, places, and things), days, months, and holidays, languages and nationalities, titles used before a name, regions used as names, and the pronoun "I".
Do not capitalize seasons, general school subjects, compass directions, or titles used without a name. On the SHSAT, watch for both under-capitalized proper nouns and over-capitalized common nouns. Use the simple test: Is this word naming something specific? If yes, capitalize it. If it's general, leave it lowercase.