VIDEO

Opportunity Cost

Economists define opportunity cost as the foregone value of the next best alternative. Click here to learn about the Law of Comparative Advantage!
ARTICLE

Nursing School Requirements

Find out what it takes to get into nursing school, from prerequisite courses and entrance exams to clinicals, graduation, and RN licensure.
VIDEO

Gerunds, Participles, and Infinitives

Gerunds, participles, and infinitives are words formed from verbs but function as another part of speech. Click here to learn about these grammar concepts!
ADDITIONAL RESOURCES:

Practice Questions

EXAM OVERVIEW
ACCUPLACER

ACCUPLACER® Writing Practice Test

Take a free ACCUPLACER Writing practice test with questions on sentence structure, grammar, punctuation, organization, and writing skills.
EXAM OVERVIEW
HESI A2

HESI® A2 Practice Test

Take a free HESI A2 practice test with 310 questions covering math, reading, science, and more.
VIDEO
ENGLISH

The Rule of 3 and Magic Helper

The Rule of 3 and the Magic Helper are classic tropes in writing, often adding a satisfying resolution to your storytelling. Learn more about these strategies here!
VIDEO
ENGLISH

Adjectives in a Series

Adjectives in a series must be separated by commas and follow standard grammar conventions. Learn all about the rules for these descriptive words here!
VIDEO
ENGLISH

Quotation Marks

Quotation marks are used to differentiate words and attribute them to their respective speakers. Learn about quotation marks in dialogue writing and more here!
EXAM OVERVIEW
CLEP

CLEP® College Composition Practice Test

Take a free CLEP College Composition practice test with essay and writing questions on revision, rhetoric, source use, grammar, and composition skills.