Written languages were originally composed of all capital letters (it is theorized that lower-case letters came into being due to sloppy handwriting). Nowadays, we frown on that, equating it to shouting. Every language has its own rules as to which words should be capitalized and under which circumstances. The are some basic rules we can learn to follow that make this skill pretty easy. The most obvious rule is that the first word of every sentence should be a CAP. We should also capitalize the first letter of the name of a particular people, places, or things. These are called proper nouns. We should also throw a CAP on titles. There is an exception, we should not capitalize a title if it follows the name of a person. There are some other things that always get a CAP they include directions (East, Northwest), days of the week (Saturday), months of the year (August), countries (Canada), nationalities (French), and holidays (Thanksgiving). Also do not forget about the first-person pronoun (I). Most spell checkers will help you with this, but sometimes they miss it especially the proper nouns.
The following pages challenge students to find and correct errors in proper capitalization, either by rewriting, matching, or identifying the relevant rule of capitalization. Answer keys are provided. Fun Fact: Computer programming, product branding, and other disciplines have their own case conventions, including CamelCase, snake_case, SCREAMING_SNAKE_CASE, kebab-case, and StUdlYCaPS.